Merge remote-tracking branch 'origin/main' into feature/interface-bind

README.md

@@ -56,7 +56,7 @@ NetBird creates an overlay peer-to-peer network connecting machines automaticall
 -  \[x] Remote SSH access without managing SSH keys.
   
 **Coming soon:**
--  \[ ] Router nodes
+-  \[ ] Network Routes.
 -  \[ ] Private DNS.
 -  \[ ] Mobile clients.
 -  \[ ] Network Activity Monitoring.

client/internal/engine.go

@@ -3,8 +3,10 @@ package internal
 import (
 	"context"
 	"fmt"
+	"github.com/netbirdio/netbird/client/internal/routemanager"
 	nbssh "github.com/netbirdio/netbird/client/ssh"
 	nbstatus "github.com/netbirdio/netbird/client/status"
+	"github.com/netbirdio/netbird/route"
 	"math/rand"
 	"reflect"
 	"runtime"
@@ -96,6 +98,8 @@ type Engine struct {
 	sshServer     nbssh.Server
 
 	statusRecorder *nbstatus.Status
+
+	routeManager routemanager.Manager
 }
 
 // Peer is an instance of the Connection Peer
@@ -155,6 +159,10 @@ func (e *Engine) Stop() error {
 		}
 	}
 
+	if e.routeManager != nil {
+		e.routeManager.Stop()
+	}
+
 	log.Infof("stopped Netbird Engine")
 
 	return nil
@@ -210,6 +218,8 @@ func (e *Engine) Start() error {
 
 	log.Infof("NetBird Engine started listening on WireGuard port %d", *port)
 
+	e.routeManager = routemanager.NewManager(e.ctx, e.config.WgPrivateKey.PublicKey().String(), e.wgInterface, e.statusRecorder)
+
 	e.receiveSignalEvents()
 	e.receiveManagementEvents()
 
@@ -597,11 +607,37 @@ func (e *Engine) updateNetworkMap(networkMap *mgmProto.NetworkMap) error {
 			}
 		}
 	}
+	protoRoutes := networkMap.GetRoutes()
+	if protoRoutes == nil {
+		protoRoutes = []*mgmProto.Route{}
+	}
+	err := e.routeManager.UpdateRoutes(serial, toRoutes(protoRoutes))
+	if err != nil {
+		log.Errorf("failed to update routes, err: %v", err)
+	}
 
 	e.networkSerial = serial
 	return nil
 }
 
+func toRoutes(protoRoutes []*mgmProto.Route) []*route.Route {
+	routes := make([]*route.Route, 0)
+	for _, protoRoute := range protoRoutes {
+		_, prefix, _ := route.ParseNetwork(protoRoute.Network)
+		convertedRoute := &route.Route{
+			ID:          protoRoute.ID,
+			Network:     prefix,
+			NetID:       protoRoute.NetID,
+			NetworkType: route.NetworkType(protoRoute.NetworkType),
+			Peer:        protoRoute.Peer,
+			Metric:      int(protoRoute.Metric),
+			Masquerade:  protoRoute.Masquerade,
+		}
+		routes = append(routes, convertedRoute)
+	}
+	return routes
+}
+
 // addNewPeers adds peers that were not know before but arrived from the Management service with the update
 func (e *Engine) addNewPeers(peersUpdate []*mgmProto.RemotePeerConfig) error {
 	for _, p := range peersUpdate {

client/internal/engine_test.go

@@ -3,11 +3,14 @@ package internal
 import (
 	"context"
 	"fmt"
+	"github.com/netbirdio/netbird/client/internal/routemanager"
 	"github.com/netbirdio/netbird/client/ssh"
 	nbstatus "github.com/netbirdio/netbird/client/status"
 	"github.com/netbirdio/netbird/iface"
+	"github.com/netbirdio/netbird/route"
 	"github.com/stretchr/testify/assert"
 	"net"
+	"net/netip"
 	"os"
 	"path/filepath"
 	"runtime"
@@ -196,6 +199,7 @@ func TestEngine_UpdateNetworkMap(t *testing.T) {
 		WgPort:       33100,
 	}, nbstatus.NewRecorder())
 	engine.wgInterface, err = iface.NewWGIFace("utun102", "100.64.0.1/24", iface.DefaultMTU)
+	engine.routeManager = routemanager.NewManager(ctx, key.PublicKey().String(), engine.wgInterface, engine.statusRecorder)
 
 	type testCase struct {
 		name       string
@@ -426,6 +430,142 @@ func TestEngine_Sync(t *testing.T) {
 	}
 }
 
+func TestEngine_UpdateNetworkMapWithRoutes(t *testing.T) {
+	testCases := []struct {
+		name           string
+		inputErr       error
+		networkMap     *mgmtProto.NetworkMap
+		expectedLen    int
+		expectedRoutes []*route.Route
+		expectedSerial uint64
+	}{
+		{
+			name: "Routes Update Should Be Passed To Manager",
+			networkMap: &mgmtProto.NetworkMap{
+				Serial:             1,
+				PeerConfig:         nil,
+				RemotePeersIsEmpty: false,
+				Routes: []*mgmtProto.Route{
+					{
+						ID:          "a",
+						Network:     "192.168.0.0/24",
+						NetID:       "n1",
+						Peer:        "p1",
+						NetworkType: 1,
+						Masquerade:  false,
+					},
+					{
+						ID:          "b",
+						Network:     "192.168.1.0/24",
+						NetID:       "n2",
+						Peer:        "p1",
+						NetworkType: 1,
+						Masquerade:  false,
+					},
+				},
+			},
+			expectedLen: 2,
+			expectedRoutes: []*route.Route{
+				{
+					ID:          "a",
+					Network:     netip.MustParsePrefix("192.168.0.0/24"),
+					NetID:       "n1",
+					Peer:        "p1",
+					NetworkType: 1,
+					Masquerade:  false,
+				},
+				{
+					ID:          "b",
+					Network:     netip.MustParsePrefix("192.168.1.0/24"),
+					NetID:       "n2",
+					Peer:        "p1",
+					NetworkType: 1,
+					Masquerade:  false,
+				},
+			},
+			expectedSerial: 1,
+		},
+		{
+			name: "Empty Routes Update Should Be Passed",
+			networkMap: &mgmtProto.NetworkMap{
+				Serial:             1,
+				PeerConfig:         nil,
+				RemotePeersIsEmpty: false,
+				Routes:             nil,
+			},
+			expectedLen:    0,
+			expectedRoutes: []*route.Route{},
+			expectedSerial: 1,
+		},
+		{
+			name:     "Error Shouldn't Break Engine",
+			inputErr: fmt.Errorf("mocking error"),
+			networkMap: &mgmtProto.NetworkMap{
+				Serial:             1,
+				PeerConfig:         nil,
+				RemotePeersIsEmpty: false,
+				Routes:             nil,
+			},
+			expectedLen:    0,
+			expectedRoutes: []*route.Route{},
+			expectedSerial: 1,
+		},
+	}
+
+	for n, testCase := range testCases {
+		t.Run(testCase.name, func(t *testing.T) {
+			// test setup
+			key, err := wgtypes.GeneratePrivateKey()
+			if err != nil {
+				t.Fatal(err)
+				return
+			}
+
+			ctx, cancel := context.WithCancel(context.Background())
+			defer cancel()
+
+			wgIfaceName := fmt.Sprintf("utun%d", 104+n)
+			wgAddr := fmt.Sprintf("100.66.%d.1/24", n)
+
+			engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{}, &EngineConfig{
+				WgIfaceName:  wgIfaceName,
+				WgAddr:       wgAddr,
+				WgPrivateKey: key,
+				WgPort:       33100,
+			}, nbstatus.NewRecorder())
+			engine.wgInterface, err = iface.NewWGIFace(wgIfaceName, wgAddr, iface.DefaultMTU)
+			assert.NoError(t, err, "shouldn't return error")
+			input := struct {
+				inputSerial uint64
+				inputRoutes []*route.Route
+			}{}
+
+			mockRouteManager := &routemanager.MockManager{
+				UpdateRoutesFunc: func(updateSerial uint64, newRoutes []*route.Route) error {
+					input.inputSerial = updateSerial
+					input.inputRoutes = newRoutes
+					return testCase.inputErr
+				},
+			}
+
+			engine.routeManager = mockRouteManager
+
+			defer func() {
+				exitErr := engine.Stop()
+				if exitErr != nil {
+					return
+				}
+			}()
+
+			err = engine.updateNetworkMap(testCase.networkMap)
+			assert.NoError(t, err, "shouldn't return error")
+			assert.Equal(t, testCase.expectedSerial, input.inputSerial, "serial should match")
+			assert.Len(t, input.inputRoutes, testCase.expectedLen, "routes len should match")
+			assert.Equal(t, testCase.expectedRoutes, input.inputRoutes, "routes should match")
+		})
+	}
+}
+
 func TestEngine_MultiplePeers(t *testing.T) {
 	// log.SetLevel(log.DebugLevel)
 

client/internal/routemanager/client.go

@@ -0,0 +1,285 @@
+package routemanager
+
+import (
+	"context"
+	"fmt"
+	"github.com/netbirdio/netbird/client/internal/peer"
+	"github.com/netbirdio/netbird/client/status"
+	"github.com/netbirdio/netbird/iface"
+	"github.com/netbirdio/netbird/route"
+	log "github.com/sirupsen/logrus"
+	"net/netip"
+)
+
+type routerPeerStatus struct {
+	connected bool
+	relayed   bool
+	direct    bool
+}
+
+type routesUpdate struct {
+	updateSerial uint64
+	routes       []*route.Route
+}
+
+type clientNetwork struct {
+	ctx                 context.Context
+	stop                context.CancelFunc
+	statusRecorder      *status.Status
+	wgInterface         *iface.WGIface
+	routes              map[string]*route.Route
+	routeUpdate         chan routesUpdate
+	peerStateUpdate     chan struct{}
+	routePeersNotifiers map[string]chan struct{}
+	chosenRoute         *route.Route
+	network             netip.Prefix
+	updateSerial        uint64
+}
+
+func newClientNetworkWatcher(ctx context.Context, wgInterface *iface.WGIface, statusRecorder *status.Status, network netip.Prefix) *clientNetwork {
+	ctx, cancel := context.WithCancel(ctx)
+	client := &clientNetwork{
+		ctx:                 ctx,
+		stop:                cancel,
+		statusRecorder:      statusRecorder,
+		wgInterface:         wgInterface,
+		routes:              make(map[string]*route.Route),
+		routePeersNotifiers: make(map[string]chan struct{}),
+		routeUpdate:         make(chan routesUpdate),
+		peerStateUpdate:     make(chan struct{}),
+		network:             network,
+	}
+	return client
+}
+
+func getClientNetworkID(input *route.Route) string {
+	return input.NetID + "-" + input.Network.String()
+}
+
+func (c *clientNetwork) getRouterPeerStatuses() map[string]routerPeerStatus {
+	routePeerStatuses := make(map[string]routerPeerStatus)
+	for _, r := range c.routes {
+		peerStatus, err := c.statusRecorder.GetPeer(r.Peer)
+		if err != nil {
+			log.Debugf("couldn't fetch peer state: %v", err)
+			continue
+		}
+		routePeerStatuses[r.ID] = routerPeerStatus{
+			connected: peerStatus.ConnStatus == peer.StatusConnected.String(),
+			relayed:   peerStatus.Relayed,
+			direct:    peerStatus.Direct,
+		}
+	}
+	return routePeerStatuses
+}
+
+func (c *clientNetwork) getBestRouteFromStatuses(routePeerStatuses map[string]routerPeerStatus) string {
+	var chosen string
+	chosenScore := 0
+
+	currID := ""
+	if c.chosenRoute != nil {
+		currID = c.chosenRoute.ID
+	}
+
+	for _, r := range c.routes {
+		tempScore := 0
+		peerStatus, found := routePeerStatuses[r.ID]
+		if !found || !peerStatus.connected {
+			continue
+		}
+		if r.Metric < route.MaxMetric {
+			metricDiff := route.MaxMetric - r.Metric
+			tempScore = metricDiff * 10
+		}
+		if !peerStatus.relayed {
+			tempScore++
+		}
+		if !peerStatus.direct {
+			tempScore++
+		}
+		if tempScore > chosenScore || (tempScore == chosenScore && currID == r.ID) {
+			chosen = r.ID
+			chosenScore = tempScore
+		}
+	}
+
+	if chosen == "" {
+		var peers []string
+		for _, r := range c.routes {
+			peers = append(peers, r.Peer)
+		}
+		log.Warnf("no route was chosen for network %s because no peers from list %s were connected", c.network, peers)
+	} else if chosen != currID {
+		log.Infof("new chosen route is %s with peer %s with score %d", chosen, c.routes[chosen].Peer, chosenScore)
+	}
+
+	return chosen
+}
+
+func (c *clientNetwork) watchPeerStatusChanges(ctx context.Context, peerKey string, peerStateUpdate chan struct{}, closer chan struct{}) {
+	for {
+		select {
+		case <-ctx.Done():
+			return
+		case <-closer:
+			return
+		case <-c.statusRecorder.GetPeerStateChangeNotifier(peerKey):
+			state, err := c.statusRecorder.GetPeer(peerKey)
+			if err != nil || state.ConnStatus == peer.StatusConnecting.String() {
+				continue
+			}
+			peerStateUpdate <- struct{}{}
+			log.Debugf("triggered route state update for Peer %s, state: %s", peerKey, state.ConnStatus)
+		}
+	}
+}
+
+func (c *clientNetwork) startPeersStatusChangeWatcher() {
+	for _, r := range c.routes {
+		_, found := c.routePeersNotifiers[r.Peer]
+		if !found {
+			c.routePeersNotifiers[r.Peer] = make(chan struct{})
+			go c.watchPeerStatusChanges(c.ctx, r.Peer, c.peerStateUpdate, c.routePeersNotifiers[r.Peer])
+		}
+	}
+}
+
+func (c *clientNetwork) removeRouteFromWireguardPeer(peerKey string) error {
+	state, err := c.statusRecorder.GetPeer(peerKey)
+	if err != nil || state.ConnStatus != peer.StatusConnected.String() {
+		return nil
+	}
+
+	err = c.wgInterface.RemoveAllowedIP(peerKey, c.network.String())
+	if err != nil {
+		return fmt.Errorf("couldn't remove allowed IP %s removed for peer %s, err: %v",
+			c.network, c.chosenRoute.Peer, err)
+	}
+	return nil
+}
+
+func (c *clientNetwork) removeRouteFromPeerAndSystem() error {
+	if c.chosenRoute != nil {
+		err := c.removeRouteFromWireguardPeer(c.chosenRoute.Peer)
+		if err != nil {
+			return err
+		}
+		err = removeFromRouteTableIfNonSystem(c.network, c.wgInterface.GetAddress().IP.String())
+		if err != nil {
+			return fmt.Errorf("couldn't remove route %s from system, err: %v",
+				c.network, err)
+		}
+	}
+	return nil
+}
+
+func (c *clientNetwork) recalculateRouteAndUpdatePeerAndSystem() error {
+
+	var err error
+
+	routerPeerStatuses := c.getRouterPeerStatuses()
+
+	chosen := c.getBestRouteFromStatuses(routerPeerStatuses)
+	if chosen == "" {
+		err = c.removeRouteFromPeerAndSystem()
+		if err != nil {
+			return err
+		}
+
+		c.chosenRoute = nil
+
+		return nil
+	}
+
+	if c.chosenRoute != nil && c.chosenRoute.ID == chosen {
+		if c.chosenRoute.IsEqual(c.routes[chosen]) {
+			return nil
+		}
+	}
+
+	if c.chosenRoute != nil {
+		err = c.removeRouteFromWireguardPeer(c.chosenRoute.Peer)
+		if err != nil {
+			return err
+		}
+	} else {
+		err = addToRouteTableIfNoExists(c.network, c.wgInterface.GetAddress().IP.String())
+		if err != nil {
+			return fmt.Errorf("route %s couldn't be added for peer %s, err: %v",
+				c.chosenRoute.Network.String(), c.wgInterface.GetAddress().IP.String(), err)
+		}
+	}
+
+	c.chosenRoute = c.routes[chosen]
+	err = c.wgInterface.AddAllowedIP(c.chosenRoute.Peer, c.network.String())
+	if err != nil {
+		log.Errorf("couldn't add allowed IP %s added for peer %s, err: %v",
+			c.network, c.chosenRoute.Peer, err)
+	}
+
+	return nil
+}
+
+func (c *clientNetwork) sendUpdateToClientNetworkWatcher(update routesUpdate) {
+	go func() {
+		c.routeUpdate <- update
+	}()
+}
+
+func (c *clientNetwork) handleUpdate(update routesUpdate) {
+	updateMap := make(map[string]*route.Route)
+
+	for _, r := range update.routes {
+		updateMap[r.ID] = r
+	}
+
+	for id, r := range c.routes {
+		_, found := updateMap[id]
+		if !found {
+			close(c.routePeersNotifiers[r.Peer])
+			delete(c.routePeersNotifiers, r.Peer)
+		}
+	}
+
+	c.routes = updateMap
+}
+
+// peersStateAndUpdateWatcher is the main point of reacting on client network routing events.
+// All the processing related to the client network should be done here. Thread-safe.
+func (c *clientNetwork) peersStateAndUpdateWatcher() {
+	for {
+		select {
+		case <-c.ctx.Done():
+			log.Debugf("stopping watcher for network %s", c.network)
+			err := c.removeRouteFromPeerAndSystem()
+			if err != nil {
+				log.Error(err)
+			}
+			return
+		case <-c.peerStateUpdate:
+			err := c.recalculateRouteAndUpdatePeerAndSystem()
+			if err != nil {
+				log.Error(err)
+			}
+		case update := <-c.routeUpdate:
+			if update.updateSerial < c.updateSerial {
+				log.Warnf("received a routes update with smaller serial number, ignoring it")
+				continue
+			}
+
+			log.Debugf("received a new client network route update for %s", c.network)
+
+			c.handleUpdate(update)
+
+			c.updateSerial = update.updateSerial
+
+			err := c.recalculateRouteAndUpdatePeerAndSystem()
+			if err != nil {
+				log.Error(err)
+			}
+
+			c.startPeersStatusChangeWatcher()
+		}
+	}
+}

client/internal/routemanager/common_linux_test.go

@@ -0,0 +1,75 @@
+package routemanager
+
+var insertRuleTestCases = []struct {
+	name      string
+	inputPair routerPair
+	ipVersion string
+}{
+	{
+		name: "Insert Forwarding IPV4 Rule",
+		inputPair: routerPair{
+			ID:          "zxa",
+			source:      "100.100.100.1/32",
+			destination: "100.100.200.0/24",
+			masquerade:  false,
+		},
+		ipVersion: ipv4,
+	},
+	{
+		name: "Insert Forwarding And Nat IPV4 Rules",
+		inputPair: routerPair{
+			ID:          "zxa",
+			source:      "100.100.100.1/32",
+			destination: "100.100.200.0/24",
+			masquerade:  true,
+		},
+		ipVersion: ipv4,
+	},
+	{
+		name: "Insert Forwarding IPV6 Rule",
+		inputPair: routerPair{
+			ID:          "zxa",
+			source:      "fc00::1/128",
+			destination: "fc12::/64",
+			masquerade:  false,
+		},
+		ipVersion: ipv6,
+	},
+	{
+		name: "Insert Forwarding And Nat IPV6 Rules",
+		inputPair: routerPair{
+			ID:          "zxa",
+			source:      "fc00::1/128",
+			destination: "fc12::/64",
+			masquerade:  true,
+		},
+		ipVersion: ipv6,
+	},
+}
+
+var removeRuleTestCases = []struct {
+	name      string
+	inputPair routerPair
+	ipVersion string
+}{
+	{
+		name: "Remove Forwarding And Nat IPV4 Rules",
+		inputPair: routerPair{
+			ID:          "zxa",
+			source:      "100.100.100.1/32",
+			destination: "100.100.200.0/24",
+			masquerade:  true,
+		},
+		ipVersion: ipv4,
+	},
+	{
+		name: "Remove Forwarding And Nat IPV6 Rules",
+		inputPair: routerPair{
+			ID:          "zxa",
+			source:      "fc00::1/128",
+			destination: "fc12::/64",
+			masquerade:  true,
+		},
+		ipVersion: ipv6,
+	},
+}

client/internal/routemanager/firewall.go

@@ -0,0 +1,12 @@
+package routemanager
+
+type firewallManager interface {
+	// RestoreOrCreateContainers restores or creates a firewall container set of rules, tables and default rules
+	RestoreOrCreateContainers() error
+	// InsertRoutingRules inserts a routing firewall rule
+	InsertRoutingRules(pair routerPair) error
+	// RemoveRoutingRules removes a routing firewall rule
+	RemoveRoutingRules(pair routerPair) error
+	// CleanRoutingRules cleans a firewall set of containers
+	CleanRoutingRules()
+}

client/internal/routemanager/firewall_linux.go

@@ -0,0 +1,55 @@
+package routemanager
+
+import (
+	"context"
+	"fmt"
+	"github.com/coreos/go-iptables/iptables"
+	log "github.com/sirupsen/logrus"
+)
+import "github.com/google/nftables"
+
+const (
+	ipv6Forwarding   = "netbird-rt-ipv6-forwarding"
+	ipv4Forwarding   = "netbird-rt-ipv4-forwarding"
+	ipv6Nat          = "netbird-rt-ipv6-nat"
+	ipv4Nat          = "netbird-rt-ipv4-nat"
+	natFormat        = "netbird-nat-%s"
+	forwardingFormat = "netbird-fwd-%s"
+	ipv6             = "ipv6"
+	ipv4             = "ipv4"
+)
+
+func genKey(format string, input string) string {
+	return fmt.Sprintf(format, input)
+}
+
+// NewFirewall if supported, returns an iptables manager, otherwise returns a nftables manager
+func NewFirewall(parentCTX context.Context) firewallManager {
+	ctx, cancel := context.WithCancel(parentCTX)
+
+	if isIptablesSupported() {
+		log.Debugf("iptables is supported")
+		ipv4Client, _ := iptables.NewWithProtocol(iptables.ProtocolIPv4)
+		ipv6Client, _ := iptables.NewWithProtocol(iptables.ProtocolIPv6)
+
+		return &iptablesManager{
+			ctx:        ctx,
+			stop:       cancel,
+			ipv4Client: ipv4Client,
+			ipv6Client: ipv6Client,
+			rules:      make(map[string]map[string][]string),
+		}
+	}
+
+	log.Debugf("iptables is not supported, using nftables")
+
+	manager := &nftablesManager{
+		ctx:    ctx,
+		stop:   cancel,
+		conn:   &nftables.Conn{},
+		chains: make(map[string]map[string]*nftables.Chain),
+		rules:  make(map[string]*nftables.Rule),
+	}
+
+	return manager
+}

client/internal/routemanager/firewall_nonlinux.go

@@ -0,0 +1,27 @@
+//go:build !linux
+// +build !linux
+
+package routemanager
+
+import "context"
+
+type unimplementedFirewall struct{}
+
+func (unimplementedFirewall) RestoreOrCreateContainers() error {
+	return nil
+}
+func (unimplementedFirewall) InsertRoutingRules(pair routerPair) error {
+	return nil
+}
+func (unimplementedFirewall) RemoveRoutingRules(pair routerPair) error {
+	return nil
+}
+
+func (unimplementedFirewall) CleanRoutingRules() {
+	return
+}
+
+// NewFirewall returns an unimplemented Firewall manager
+func NewFirewall(parentCtx context.Context) firewallManager {
+	return unimplementedFirewall{}
+}

client/internal/routemanager/iptables_linux.go

@@ -0,0 +1,403 @@
+package routemanager
+
+import (
+	"context"
+	"fmt"
+	"github.com/coreos/go-iptables/iptables"
+	log "github.com/sirupsen/logrus"
+	"net/netip"
+	"os/exec"
+	"strings"
+	"sync"
+)
+
+func isIptablesSupported() bool {
+	_, err4 := exec.LookPath("iptables")
+	_, err6 := exec.LookPath("ip6tables")
+	return err4 == nil && err6 == nil
+}
+
+// constants needed to manage and create iptable rules
+const (
+	iptablesFilterTable            = "filter"
+	iptablesNatTable               = "nat"
+	iptablesForwardChain           = "FORWARD"
+	iptablesPostRoutingChain       = "POSTROUTING"
+	iptablesRoutingNatChain        = "NETBIRD-RT-NAT"
+	iptablesRoutingForwardingChain = "NETBIRD-RT-FWD"
+	routingFinalForwardJump        = "ACCEPT"
+	routingFinalNatJump            = "MASQUERADE"
+)
+
+// some presets for building nftable rules
+var (
+	iptablesDefaultForwardingRule        = []string{"-j", iptablesRoutingForwardingChain, "-m", "comment", "--comment"}
+	iptablesDefaultNetbirdForwardingRule = []string{"-j", "RETURN"}
+	iptablesDefaultNatRule               = []string{"-j", iptablesRoutingNatChain, "-m", "comment", "--comment"}
+	iptablesDefaultNetbirdNatRule        = []string{"-j", "RETURN"}
+)
+
+type iptablesManager struct {
+	ctx        context.Context
+	stop       context.CancelFunc
+	ipv4Client *iptables.IPTables
+	ipv6Client *iptables.IPTables
+	rules      map[string]map[string][]string
+	mux        sync.Mutex
+}
+
+// CleanRoutingRules cleans existing iptables resources that we created by the agent
+func (i *iptablesManager) CleanRoutingRules() {
+	i.mux.Lock()
+	defer i.mux.Unlock()
+
+	err := i.cleanJumpRules()
+	if err != nil {
+		log.Error(err)
+	}
+
+	log.Debug("flushing tables")
+	errMSGFormat := "iptables: failed cleaning %s chain %s,error: %v"
+	err = i.ipv4Client.ClearAndDeleteChain(iptablesFilterTable, iptablesRoutingForwardingChain)
+	if err != nil {
+		log.Errorf(errMSGFormat, ipv4, iptablesRoutingForwardingChain, err)
+	}
+
+	err = i.ipv4Client.ClearAndDeleteChain(iptablesNatTable, iptablesRoutingNatChain)
+	if err != nil {
+		log.Errorf(errMSGFormat, ipv4, iptablesRoutingNatChain, err)
+	}
+
+	err = i.ipv6Client.ClearAndDeleteChain(iptablesFilterTable, iptablesRoutingForwardingChain)
+	if err != nil {
+		log.Errorf(errMSGFormat, ipv6, iptablesRoutingForwardingChain, err)
+	}
+
+	err = i.ipv6Client.ClearAndDeleteChain(iptablesNatTable, iptablesRoutingNatChain)
+	if err != nil {
+		log.Errorf(errMSGFormat, ipv6, iptablesRoutingNatChain, err)
+	}
+
+	log.Info("done cleaning up iptables rules")
+}
+
+// RestoreOrCreateContainers restores existing iptables containers (chains and rules)
+// if they don't exist, we create them
+func (i *iptablesManager) RestoreOrCreateContainers() error {
+	i.mux.Lock()
+	defer i.mux.Unlock()
+
+	if i.rules[ipv4][ipv4Forwarding] != nil && i.rules[ipv6][ipv6Forwarding] != nil {
+		return nil
+	}
+
+	errMSGFormat := "iptables: failed creating %s chain %s,error: %v"
+
+	err := createChain(i.ipv4Client, iptablesFilterTable, iptablesRoutingForwardingChain)
+	if err != nil {
+		return fmt.Errorf(errMSGFormat, ipv4, iptablesRoutingForwardingChain, err)
+	}
+
+	err = createChain(i.ipv4Client, iptablesNatTable, iptablesRoutingNatChain)
+	if err != nil {
+		return fmt.Errorf(errMSGFormat, ipv4, iptablesRoutingNatChain, err)
+	}
+
+	err = createChain(i.ipv6Client, iptablesFilterTable, iptablesRoutingForwardingChain)
+	if err != nil {
+		return fmt.Errorf(errMSGFormat, ipv6, iptablesRoutingForwardingChain, err)
+	}
+
+	err = createChain(i.ipv6Client, iptablesNatTable, iptablesRoutingNatChain)
+	if err != nil {
+		return fmt.Errorf(errMSGFormat, ipv6, iptablesRoutingNatChain, err)
+	}
+
+	err = i.restoreRules(i.ipv4Client)
+	if err != nil {
+		return fmt.Errorf("iptables: error while restoring ipv4 rules: %v", err)
+	}
+
+	err = i.restoreRules(i.ipv6Client)
+	if err != nil {
+		return fmt.Errorf("iptables: error while restoring ipv6 rules: %v", err)
+	}
+
+	err = i.addJumpRules()
+	if err != nil {
+		return fmt.Errorf("iptables: error while creating jump rules: %v", err)
+	}
+
+	return nil
+}
+
+// addJumpRules create jump rules to send packets to NetBird chains
+func (i *iptablesManager) addJumpRules() error {
+	err := i.cleanJumpRules()
+	if err != nil {
+		return err
+	}
+	rule := append(iptablesDefaultForwardingRule, ipv4Forwarding)
+	err = i.ipv4Client.Insert(iptablesFilterTable, iptablesForwardChain, 1, rule...)
+	if err != nil {
+		return err
+	}
+
+	i.rules[ipv4][ipv4Forwarding] = rule
+
+	rule = append(iptablesDefaultNatRule, ipv4Nat)
+	err = i.ipv4Client.Insert(iptablesNatTable, iptablesPostRoutingChain, 1, rule...)
+	if err != nil {
+		return err
+	}
+	i.rules[ipv4][ipv4Nat] = rule
+
+	rule = append(iptablesDefaultForwardingRule, ipv6Forwarding)
+	err = i.ipv6Client.Insert(iptablesFilterTable, iptablesForwardChain, 1, rule...)
+	if err != nil {
+		return err
+	}
+	i.rules[ipv6][ipv6Forwarding] = rule
+
+	rule = append(iptablesDefaultNatRule, ipv6Nat)
+	err = i.ipv6Client.Insert(iptablesNatTable, iptablesPostRoutingChain, 1, rule...)
+	if err != nil {
+		return err
+	}
+	i.rules[ipv6][ipv6Nat] = rule
+
+	return nil
+}
+
+// cleanJumpRules cleans jump rules that was sending packets to NetBird chains
+func (i *iptablesManager) cleanJumpRules() error {
+	var err error
+	errMSGFormat := "iptables: failed cleaning rule from %s chain %s,err: %v"
+	rule, found := i.rules[ipv4][ipv4Forwarding]
+	if found {
+		log.Debugf("iptables: removing %s rule: %s ", ipv4, ipv4Forwarding)
+		err = i.ipv4Client.DeleteIfExists(iptablesFilterTable, iptablesForwardChain, rule...)
+		if err != nil {
+			return fmt.Errorf(errMSGFormat, ipv4, iptablesForwardChain, err)
+		}
+	}
+	rule, found = i.rules[ipv4][ipv4Nat]
+	if found {
+		log.Debugf("iptables: removing %s rule: %s ", ipv4, ipv4Nat)
+		err = i.ipv4Client.DeleteIfExists(iptablesNatTable, iptablesPostRoutingChain, rule...)
+		if err != nil {
+			return fmt.Errorf(errMSGFormat, ipv4, iptablesPostRoutingChain, err)
+		}
+	}
+	rule, found = i.rules[ipv6][ipv6Forwarding]
+	if found {
+		log.Debugf("iptables: removing %s rule: %s ", ipv6, ipv6Forwarding)
+		err = i.ipv6Client.DeleteIfExists(iptablesFilterTable, iptablesForwardChain, rule...)
+		if err != nil {
+			return fmt.Errorf(errMSGFormat, ipv6, iptablesForwardChain, err)
+		}
+	}
+	rule, found = i.rules[ipv6][ipv6Nat]
+	if found {
+		log.Debugf("iptables: removing %s rule: %s ", ipv6, ipv6Nat)
+		err = i.ipv6Client.DeleteIfExists(iptablesNatTable, iptablesPostRoutingChain, rule...)
+		if err != nil {
+			return fmt.Errorf(errMSGFormat, ipv6, iptablesPostRoutingChain, err)
+		}
+	}
+	return nil
+}
+
+func iptablesProtoToString(proto iptables.Protocol) string {
+	if proto == iptables.ProtocolIPv6 {
+		return ipv6
+	}
+	return ipv4
+}
+
+// restoreRules restores existing NetBird rules
+func (i *iptablesManager) restoreRules(iptablesClient *iptables.IPTables) error {
+	ipVersion := iptablesProtoToString(iptablesClient.Proto())
+
+	if i.rules[ipVersion] == nil {
+		i.rules[ipVersion] = make(map[string][]string)
+	}
+	table := iptablesFilterTable
+	for _, chain := range []string{iptablesForwardChain, iptablesRoutingForwardingChain} {
+		rules, err := iptablesClient.List(table, chain)
+		if err != nil {
+			return err
+		}
+		for _, ruleString := range rules {
+			rule := strings.Fields(ruleString)
+			id := getRuleRouteID(rule)
+			if id != "" {
+				i.rules[ipVersion][id] = rule[2:]
+			}
+		}
+	}
+
+	table = iptablesNatTable
+	for _, chain := range []string{iptablesPostRoutingChain, iptablesRoutingNatChain} {
+		rules, err := iptablesClient.List(table, chain)
+		if err != nil {
+			return err
+		}
+		for _, ruleString := range rules {
+			rule := strings.Fields(ruleString)
+			id := getRuleRouteID(rule)
+			if id != "" {
+				i.rules[ipVersion][id] = rule[2:]
+			}
+		}
+	}
+
+	return nil
+}
+
+// createChain create NetBird chains
+func createChain(iptables *iptables.IPTables, table, newChain string) error {
+	chains, err := iptables.ListChains(table)
+	if err != nil {
+		return fmt.Errorf("couldn't get %s %s table chains, error: %v", iptablesProtoToString(iptables.Proto()), table, err)
+	}
+
+	shouldCreateChain := true
+	for _, chain := range chains {
+		if chain == newChain {
+			shouldCreateChain = false
+		}
+	}
+
+	if shouldCreateChain {
+		err = iptables.NewChain(table, newChain)
+		if err != nil {
+			return fmt.Errorf("couldn't create %s chain %s in %s table, error: %v", iptablesProtoToString(iptables.Proto()), newChain, table, err)
+		}
+
+		if table == iptablesNatTable {
+			err = iptables.Append(table, newChain, iptablesDefaultNetbirdNatRule...)
+		} else {
+			err = iptables.Append(table, newChain, iptablesDefaultNetbirdForwardingRule...)
+		}
+		if err != nil {
+			return fmt.Errorf("couldn't create %s chain %s default rule, error: %v", iptablesProtoToString(iptables.Proto()), newChain, err)
+		}
+
+	}
+	return nil
+}
+
+// genRuleSpec generates rule specification with comment identifier
+func genRuleSpec(jump, id, source, destination string) []string {
+	return []string{"-s", source, "-d", destination, "-j", jump, "-m", "comment", "--comment", id}
+}
+
+// getRuleRouteID returns the rule ID if matches our prefix
+func getRuleRouteID(rule []string) string {
+	for i, flag := range rule {
+		if flag == "--comment" {
+			id := rule[i+1]
+			if strings.HasPrefix(id, "netbird-") {
+				return id
+			}
+		}
+	}
+	return ""
+}
+
+// InsertRoutingRules inserts an iptables rule pair to the forwarding chain and if enabled, to the nat chain
+func (i *iptablesManager) InsertRoutingRules(pair routerPair) error {
+	i.mux.Lock()
+	defer i.mux.Unlock()
+
+	var err error
+	prefix := netip.MustParsePrefix(pair.source)
+	ipVersion := ipv4
+	iptablesClient := i.ipv4Client
+	if prefix.Addr().Unmap().Is6() {
+		iptablesClient = i.ipv6Client
+		ipVersion = ipv6
+	}
+
+	forwardRuleKey := genKey(forwardingFormat, pair.ID)
+	forwardRule := genRuleSpec(routingFinalForwardJump, forwardRuleKey, pair.source, pair.destination)
+	existingRule, found := i.rules[ipVersion][forwardRuleKey]
+	if found {
+		err = iptablesClient.DeleteIfExists(iptablesFilterTable, iptablesRoutingForwardingChain, existingRule...)
+		if err != nil {
+			return fmt.Errorf("iptables: error while removing existing forwarding rule for %s: %v", pair.destination, err)
+		}
+		delete(i.rules[ipVersion], forwardRuleKey)
+	}
+	err = iptablesClient.Insert(iptablesFilterTable, iptablesRoutingForwardingChain, 1, forwardRule...)
+	if err != nil {
+		return fmt.Errorf("iptables: error while adding new forwarding rule for %s: %v", pair.destination, err)
+	}
+
+	i.rules[ipVersion][forwardRuleKey] = forwardRule
+
+	if !pair.masquerade {
+		return nil
+	}
+
+	natRuleKey := genKey(natFormat, pair.ID)
+	natRule := genRuleSpec(routingFinalNatJump, natRuleKey, pair.source, pair.destination)
+	existingRule, found = i.rules[ipVersion][natRuleKey]
+	if found {
+		err = iptablesClient.DeleteIfExists(iptablesNatTable, iptablesRoutingNatChain, existingRule...)
+		if err != nil {
+			return fmt.Errorf("iptables: error while removing existing nat rulefor %s: %v", pair.destination, err)
+		}
+		delete(i.rules[ipVersion], natRuleKey)
+	}
+	err = iptablesClient.Insert(iptablesNatTable, iptablesRoutingNatChain, 1, natRule...)
+	if err != nil {
+		return fmt.Errorf("iptables: error while adding new nat rulefor %s: %v", pair.destination, err)
+	}
+
+	i.rules[ipVersion][natRuleKey] = natRule
+
+	return nil
+}
+
+// RemoveRoutingRules removes an iptables rule pair from forwarding and nat chains
+func (i *iptablesManager) RemoveRoutingRules(pair routerPair) error {
+	i.mux.Lock()
+	defer i.mux.Unlock()
+
+	var err error
+	prefix := netip.MustParsePrefix(pair.source)
+	ipVersion := ipv4
+	iptablesClient := i.ipv4Client
+	if prefix.Addr().Unmap().Is6() {
+		iptablesClient = i.ipv6Client
+		ipVersion = ipv6
+	}
+
+	forwardRuleKey := genKey(forwardingFormat, pair.ID)
+	existingRule, found := i.rules[ipVersion][forwardRuleKey]
+	if found {
+		err = iptablesClient.DeleteIfExists(iptablesFilterTable, iptablesRoutingForwardingChain, existingRule...)
+		if err != nil {
+			return fmt.Errorf("iptables: error while removing existing forwarding rule for %s: %v", pair.destination, err)
+		}
+	}
+	delete(i.rules[ipVersion], forwardRuleKey)
+
+	if !pair.masquerade {
+		return nil
+	}
+
+	natRuleKey := genKey(natFormat, pair.ID)
+	existingRule, found = i.rules[ipVersion][natRuleKey]
+	if found {
+		err = iptablesClient.DeleteIfExists(iptablesNatTable, iptablesRoutingNatChain, existingRule...)
+		if err != nil {
+			return fmt.Errorf("iptables: error while removing existing nat rule for %s: %v", pair.destination, err)
+		}
+	}
+	delete(i.rules[ipVersion], natRuleKey)
+
+	return nil
+}

client/internal/routemanager/iptables_linux_test.go

@@ -0,0 +1,247 @@
+package routemanager
+
+import (
+	"context"
+	"github.com/coreos/go-iptables/iptables"
+	"github.com/stretchr/testify/require"
+	"testing"
+)
+
+func TestIptablesManager_RestoreOrCreateContainers(t *testing.T) {
+
+	if !isIptablesSupported() {
+		t.SkipNow()
+	}
+
+	ctx, cancel := context.WithCancel(context.TODO())
+	ipv4Client, _ := iptables.NewWithProtocol(iptables.ProtocolIPv4)
+	ipv6Client, _ := iptables.NewWithProtocol(iptables.ProtocolIPv6)
+
+	manager := &iptablesManager{
+		ctx:        ctx,
+		stop:       cancel,
+		ipv4Client: ipv4Client,
+		ipv6Client: ipv6Client,
+		rules:      make(map[string]map[string][]string),
+	}
+
+	defer manager.CleanRoutingRules()
+
+	err := manager.RestoreOrCreateContainers()
+	require.NoError(t, err, "shouldn't return error")
+
+	require.Len(t, manager.rules, 2, "should have created maps for ipv4 and ipv6")
+
+	require.Len(t, manager.rules[ipv4], 2, "should have created minimal rules for ipv4")
+
+	exists, err := ipv4Client.Exists(iptablesFilterTable, iptablesForwardChain, manager.rules[ipv4][ipv4Forwarding]...)
+	require.NoError(t, err, "should be able to query the iptables %s %s table and %s chain", ipv4, iptablesFilterTable, iptablesForwardChain)
+	require.True(t, exists, "forwarding rule should exist")
+
+	exists, err = ipv4Client.Exists(iptablesNatTable, iptablesPostRoutingChain, manager.rules[ipv4][ipv4Nat]...)
+	require.NoError(t, err, "should be able to query the iptables %s %s table and %s chain", ipv4, iptablesNatTable, iptablesPostRoutingChain)
+	require.True(t, exists, "postrouting rule should exist")
+
+	require.Len(t, manager.rules[ipv6], 2, "should have created minimal rules for ipv6")
+
+	exists, err = ipv6Client.Exists(iptablesFilterTable, iptablesForwardChain, manager.rules[ipv6][ipv6Forwarding]...)
+	require.NoError(t, err, "should be able to query the iptables %s %s table and %s chain", ipv6, iptablesFilterTable, iptablesForwardChain)
+	require.True(t, exists, "forwarding rule should exist")
+
+	exists, err = ipv6Client.Exists(iptablesNatTable, iptablesPostRoutingChain, manager.rules[ipv6][ipv6Nat]...)
+	require.NoError(t, err, "should be able to query the iptables %s %s table and %s chain", ipv6, iptablesNatTable, iptablesPostRoutingChain)
+	require.True(t, exists, "postrouting rule should exist")
+
+	pair := routerPair{
+		ID:          "abc",
+		source:      "100.100.100.1/32",
+		destination: "100.100.100.0/24",
+		masquerade:  true,
+	}
+	forward4RuleKey := genKey(forwardingFormat, pair.ID)
+	forward4Rule := genRuleSpec(routingFinalForwardJump, forward4RuleKey, pair.source, pair.destination)
+
+	err = ipv4Client.Insert(iptablesFilterTable, iptablesRoutingForwardingChain, 1, forward4Rule...)
+	require.NoError(t, err, "inserting rule should not return error")
+
+	nat4RuleKey := genKey(natFormat, pair.ID)
+	nat4Rule := genRuleSpec(routingFinalNatJump, nat4RuleKey, pair.source, pair.destination)
+
+	err = ipv4Client.Insert(iptablesNatTable, iptablesRoutingNatChain, 1, nat4Rule...)
+	require.NoError(t, err, "inserting rule should not return error")
+
+	pair = routerPair{
+		ID:          "abc",
+		source:      "fc00::1/128",
+		destination: "fc11::/64",
+		masquerade:  true,
+	}
+
+	forward6RuleKey := genKey(forwardingFormat, pair.ID)
+	forward6Rule := genRuleSpec(routingFinalForwardJump, forward6RuleKey, pair.source, pair.destination)
+
+	err = ipv6Client.Insert(iptablesFilterTable, iptablesRoutingForwardingChain, 1, forward6Rule...)
+	require.NoError(t, err, "inserting rule should not return error")
+
+	nat6RuleKey := genKey(natFormat, pair.ID)
+	nat6Rule := genRuleSpec(routingFinalNatJump, nat6RuleKey, pair.source, pair.destination)
+
+	err = ipv6Client.Insert(iptablesNatTable, iptablesRoutingNatChain, 1, nat6Rule...)
+	require.NoError(t, err, "inserting rule should not return error")
+
+	delete(manager.rules, ipv4)
+	delete(manager.rules, ipv6)
+
+	err = manager.RestoreOrCreateContainers()
+	require.NoError(t, err, "shouldn't return error")
+
+	require.Len(t, manager.rules[ipv4], 4, "should have restored all rules for ipv4")
+
+	foundRule, found := manager.rules[ipv4][forward4RuleKey]
+	require.True(t, found, "forwarding rule should exist in the map")
+	require.Equal(t, forward4Rule[:4], foundRule[:4], "stored forwarding rule should match")
+
+	foundRule, found = manager.rules[ipv4][nat4RuleKey]
+	require.True(t, found, "nat rule should exist in the map")
+	require.Equal(t, nat4Rule[:4], foundRule[:4], "stored nat rule should match")
+
+	require.Len(t, manager.rules[ipv6], 4, "should have restored all rules for ipv6")
+
+	foundRule, found = manager.rules[ipv6][forward6RuleKey]
+	require.True(t, found, "forwarding rule should exist in the map")
+	require.Equal(t, forward6Rule[:4], foundRule[:4], "stored forward rule should match")
+
+	foundRule, found = manager.rules[ipv6][nat6RuleKey]
+	require.True(t, found, "nat rule should exist in the map")
+	require.Equal(t, nat6Rule[:4], foundRule[:4], "stored nat rule should match")
+}
+
+func TestIptablesManager_InsertRoutingRules(t *testing.T) {
+
+	if !isIptablesSupported() {
+		t.SkipNow()
+	}
+
+	for _, testCase := range insertRuleTestCases {
+		t.Run(testCase.name, func(t *testing.T) {
+			ctx, cancel := context.WithCancel(context.TODO())
+			ipv4Client, _ := iptables.NewWithProtocol(iptables.ProtocolIPv4)
+			ipv6Client, _ := iptables.NewWithProtocol(iptables.ProtocolIPv6)
+			iptablesClient := ipv4Client
+			if testCase.ipVersion == ipv6 {
+				iptablesClient = ipv6Client
+			}
+
+			manager := &iptablesManager{
+				ctx:        ctx,
+				stop:       cancel,
+				ipv4Client: ipv4Client,
+				ipv6Client: ipv6Client,
+				rules:      make(map[string]map[string][]string),
+			}
+
+			defer manager.CleanRoutingRules()
+
+			err := manager.RestoreOrCreateContainers()
+			require.NoError(t, err, "shouldn't return error")
+
+			err = manager.InsertRoutingRules(testCase.inputPair)
+			require.NoError(t, err, "forwarding pair should be inserted")
+
+			forwardRuleKey := genKey(forwardingFormat, testCase.inputPair.ID)
+			forwardRule := genRuleSpec(routingFinalForwardJump, forwardRuleKey, testCase.inputPair.source, testCase.inputPair.destination)
+
+			exists, err := iptablesClient.Exists(iptablesFilterTable, iptablesRoutingForwardingChain, forwardRule...)
+			require.NoError(t, err, "should be able to query the iptables %s %s table and %s chain", testCase.ipVersion, iptablesFilterTable, iptablesRoutingForwardingChain)
+			require.True(t, exists, "forwarding rule should exist")
+
+			foundRule, found := manager.rules[testCase.ipVersion][forwardRuleKey]
+			require.True(t, found, "forwarding rule should exist in the manager map")
+			require.Equal(t, forwardRule[:4], foundRule[:4], "stored forwarding rule should match")
+
+			natRuleKey := genKey(natFormat, testCase.inputPair.ID)
+			natRule := genRuleSpec(routingFinalNatJump, natRuleKey, testCase.inputPair.source, testCase.inputPair.destination)
+
+			exists, err = iptablesClient.Exists(iptablesNatTable, iptablesRoutingNatChain, natRule...)
+			require.NoError(t, err, "should be able to query the iptables %s %s table and %s chain", testCase.ipVersion, iptablesNatTable, iptablesRoutingNatChain)
+			if testCase.inputPair.masquerade {
+				require.True(t, exists, "nat rule should be created")
+				foundNatRule, foundNat := manager.rules[testCase.ipVersion][natRuleKey]
+				require.True(t, foundNat, "nat rule should exist in the map")
+				require.Equal(t, natRule[:4], foundNatRule[:4], "stored nat rule should match")
+			} else {
+				require.False(t, exists, "nat rule should not be created")
+				_, foundNat := manager.rules[testCase.ipVersion][natRuleKey]
+				require.False(t, foundNat, "nat rule should exist in the map")
+			}
+		})
+	}
+}
+
+func TestIptablesManager_RemoveRoutingRules(t *testing.T) {
+
+	if !isIptablesSupported() {
+		t.SkipNow()
+	}
+
+	for _, testCase := range removeRuleTestCases {
+		t.Run(testCase.name, func(t *testing.T) {
+			ctx, cancel := context.WithCancel(context.TODO())
+			ipv4Client, _ := iptables.NewWithProtocol(iptables.ProtocolIPv4)
+			ipv6Client, _ := iptables.NewWithProtocol(iptables.ProtocolIPv6)
+			iptablesClient := ipv4Client
+			if testCase.ipVersion == ipv6 {
+				iptablesClient = ipv6Client
+			}
+
+			manager := &iptablesManager{
+				ctx:        ctx,
+				stop:       cancel,
+				ipv4Client: ipv4Client,
+				ipv6Client: ipv6Client,
+				rules:      make(map[string]map[string][]string),
+			}
+
+			defer manager.CleanRoutingRules()
+
+			err := manager.RestoreOrCreateContainers()
+			require.NoError(t, err, "shouldn't return error")
+
+			forwardRuleKey := genKey(forwardingFormat, testCase.inputPair.ID)
+			forwardRule := genRuleSpec(routingFinalForwardJump, forwardRuleKey, testCase.inputPair.source, testCase.inputPair.destination)
+
+			err = iptablesClient.Insert(iptablesFilterTable, iptablesRoutingForwardingChain, 1, forwardRule...)
+			require.NoError(t, err, "inserting rule should not return error")
+
+			natRuleKey := genKey(natFormat, testCase.inputPair.ID)
+			natRule := genRuleSpec(routingFinalNatJump, natRuleKey, testCase.inputPair.source, testCase.inputPair.destination)
+
+			err = iptablesClient.Insert(iptablesNatTable, iptablesRoutingNatChain, 1, natRule...)
+			require.NoError(t, err, "inserting rule should not return error")
+
+			delete(manager.rules, ipv4)
+			delete(manager.rules, ipv6)
+
+			err = manager.RestoreOrCreateContainers()
+			require.NoError(t, err, "shouldn't return error")
+
+			err = manager.RemoveRoutingRules(testCase.inputPair)
+			require.NoError(t, err, "shouldn't return error")
+
+			exists, err := iptablesClient.Exists(iptablesFilterTable, iptablesRoutingForwardingChain, forwardRule...)
+			require.NoError(t, err, "should be able to query the iptables %s %s table and %s chain", testCase.ipVersion, iptablesFilterTable, iptablesRoutingForwardingChain)
+			require.False(t, exists, "forwarding rule should not exist")
+
+			_, found := manager.rules[testCase.ipVersion][forwardRuleKey]
+			require.False(t, found, "forwarding rule should exist in the manager map")
+
+			exists, err = iptablesClient.Exists(iptablesNatTable, iptablesRoutingNatChain, natRule...)
+			require.NoError(t, err, "should be able to query the iptables %s %s table and %s chain", testCase.ipVersion, iptablesNatTable, iptablesRoutingNatChain)
+			require.False(t, exists, "nat rule should not exist")
+
+			_, found = manager.rules[testCase.ipVersion][natRuleKey]
+			require.False(t, found, "forwarding rule should exist in the manager map")
+
+		})
+	}
+}

client/internal/routemanager/manager.go

@@ -0,0 +1,181 @@
+package routemanager
+
+import (
+	"context"
+	"fmt"
+	"github.com/netbirdio/netbird/client/status"
+	"github.com/netbirdio/netbird/client/system"
+	"github.com/netbirdio/netbird/iface"
+	"github.com/netbirdio/netbird/route"
+	log "github.com/sirupsen/logrus"
+	"runtime"
+	"sync"
+)
+
+// Manager is a route manager interface
+type Manager interface {
+	UpdateRoutes(updateSerial uint64, newRoutes []*route.Route) error
+	Stop()
+}
+
+// DefaultManager is the default instance of a route manager
+type DefaultManager struct {
+	ctx            context.Context
+	stop           context.CancelFunc
+	mux            sync.Mutex
+	clientNetworks map[string]*clientNetwork
+	serverRoutes   map[string]*route.Route
+	serverRouter   *serverRouter
+	statusRecorder *status.Status
+	wgInterface    *iface.WGIface
+	pubKey         string
+}
+
+// NewManager returns a new route manager
+func NewManager(ctx context.Context, pubKey string, wgInterface *iface.WGIface, statusRecorder *status.Status) *DefaultManager {
+	mCTX, cancel := context.WithCancel(ctx)
+	return &DefaultManager{
+		ctx:            mCTX,
+		stop:           cancel,
+		clientNetworks: make(map[string]*clientNetwork),
+		serverRoutes:   make(map[string]*route.Route),
+		serverRouter: &serverRouter{
+			routes:                   make(map[string]*route.Route),
+			netForwardHistoryEnabled: isNetForwardHistoryEnabled(),
+			firewall:                 NewFirewall(ctx),
+		},
+		statusRecorder: statusRecorder,
+		wgInterface:    wgInterface,
+		pubKey:         pubKey,
+	}
+}
+
+// Stop stops the manager watchers and clean firewall rules
+func (m *DefaultManager) Stop() {
+	m.stop()
+	m.serverRouter.firewall.CleanRoutingRules()
+}
+
+func (m *DefaultManager) updateClientNetworks(updateSerial uint64, networks map[string][]*route.Route) {
+	// removing routes that do not exist as per the update from the Management service.
+	for id, client := range m.clientNetworks {
+		_, found := networks[id]
+		if !found {
+			log.Debugf("stopping client network watcher, %s", id)
+			client.stop()
+			delete(m.clientNetworks, id)
+		}
+	}
+
+	for id, routes := range networks {
+		clientNetworkWatcher, found := m.clientNetworks[id]
+		if !found {
+			clientNetworkWatcher = newClientNetworkWatcher(m.ctx, m.wgInterface, m.statusRecorder, routes[0].Network)
+			m.clientNetworks[id] = clientNetworkWatcher
+			go clientNetworkWatcher.peersStateAndUpdateWatcher()
+		}
+		update := routesUpdate{
+			updateSerial: updateSerial,
+			routes:       routes,
+		}
+
+		clientNetworkWatcher.sendUpdateToClientNetworkWatcher(update)
+	}
+}
+
+func (m *DefaultManager) updateServerRoutes(routesMap map[string]*route.Route) error {
+	serverRoutesToRemove := make([]string, 0)
+
+	if len(routesMap) > 0 {
+		err := m.serverRouter.firewall.RestoreOrCreateContainers()
+		if err != nil {
+			return fmt.Errorf("couldn't initialize firewall containers, got err: %v", err)
+		}
+	}
+
+	for routeID := range m.serverRoutes {
+		update, found := routesMap[routeID]
+		if !found || !update.IsEqual(m.serverRoutes[routeID]) {
+			serverRoutesToRemove = append(serverRoutesToRemove, routeID)
+			continue
+		}
+	}
+
+	for _, routeID := range serverRoutesToRemove {
+		oldRoute := m.serverRoutes[routeID]
+		err := m.removeFromServerNetwork(oldRoute)
+		if err != nil {
+			log.Errorf("unable to remove route id: %s, network %s, from server, got: %v",
+				oldRoute.ID, oldRoute.Network, err)
+		}
+		delete(m.serverRoutes, routeID)
+	}
+
+	for id, newRoute := range routesMap {
+		_, found := m.serverRoutes[id]
+		if found {
+			continue
+		}
+
+		err := m.addToServerNetwork(newRoute)
+		if err != nil {
+			log.Errorf("unable to add route %s from server, got: %v", newRoute.ID, err)
+			continue
+		}
+		m.serverRoutes[id] = newRoute
+	}
+
+	if len(m.serverRoutes) > 0 {
+		err := enableIPForwarding()
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+// UpdateRoutes compares received routes with existing routes and remove, update or add them to the client and server maps
+func (m *DefaultManager) UpdateRoutes(updateSerial uint64, newRoutes []*route.Route) error {
+	select {
+	case <-m.ctx.Done():
+		log.Infof("not updating routes as context is closed")
+		return m.ctx.Err()
+	default:
+		m.mux.Lock()
+		defer m.mux.Unlock()
+
+		newClientRoutesIDMap := make(map[string][]*route.Route)
+		newServerRoutesMap := make(map[string]*route.Route)
+
+		for _, newRoute := range newRoutes {
+			// only linux is supported for now
+			if newRoute.Peer == m.pubKey {
+				if runtime.GOOS != "linux" {
+					log.Warnf("received a route to manage, but agent doesn't support router mode on %s OS", runtime.GOOS)
+					continue
+				}
+				newServerRoutesMap[newRoute.ID] = newRoute
+			} else {
+				// if prefix is too small, lets assume is a possible default route which is not yet supported
+				// we skip this route management
+				if newRoute.Network.Bits() < 7 {
+					log.Errorf("this agent version: %s, doesn't support default routes, received %s, skiping this route",
+						system.NetbirdVersion(), newRoute.Network)
+					continue
+				}
+				clientNetworkID := getClientNetworkID(newRoute)
+				newClientRoutesIDMap[clientNetworkID] = append(newClientRoutesIDMap[clientNetworkID], newRoute)
+			}
+		}
+
+		m.updateClientNetworks(updateSerial, newClientRoutesIDMap)
+
+		err := m.updateServerRoutes(newServerRoutesMap)
+		if err != nil {
+			return err
+		}
+
+		return nil
+	}
+}

client/internal/routemanager/manager_test.go

@@ -0,0 +1,370 @@
+package routemanager
+
+import (
+	"context"
+	"fmt"
+	"github.com/netbirdio/netbird/client/status"
+	"github.com/netbirdio/netbird/iface"
+	"github.com/netbirdio/netbird/route"
+	"github.com/stretchr/testify/require"
+	"net/netip"
+	"runtime"
+	"testing"
+)
+
+// send 5 routes, one for server and 4 for clients, one normal and 2 HA and one small
+// if linux host, should have one for server in map
+// we should have 2 client manager
+// 2 ranges in our routing table
+
+const localPeerKey = "local"
+const remotePeerKey1 = "remote1"
+const remotePeerKey2 = "remote1"
+
+func TestManagerUpdateRoutes(t *testing.T) {
+	testCases := []struct {
+		name                          string
+		inputInitRoutes               []*route.Route
+		inputRoutes                   []*route.Route
+		inputSerial                   uint64
+		shouldCheckServerRoutes       bool
+		serverRoutesExpected          int
+		clientNetworkWatchersExpected int
+	}{
+		{
+			name:            "Should create 2 client networks",
+			inputInitRoutes: []*route.Route{},
+			inputRoutes: []*route.Route{
+				{
+					ID:          "a",
+					NetID:       "routeA",
+					Peer:        remotePeerKey1,
+					Network:     netip.MustParsePrefix("100.64.251.250/30"),
+					NetworkType: route.IPv4Network,
+					Metric:      9999,
+					Masquerade:  false,
+					Enabled:     true,
+				},
+				{
+					ID:          "b",
+					NetID:       "routeB",
+					Peer:        remotePeerKey1,
+					Network:     netip.MustParsePrefix("8.8.8.8/32"),
+					NetworkType: route.IPv4Network,
+					Metric:      9999,
+					Masquerade:  false,
+					Enabled:     true,
+				},
+			},
+			inputSerial:                   1,
+			clientNetworkWatchersExpected: 2,
+		},
+		{
+			name: "Should Create 2 Server Routes",
+			inputRoutes: []*route.Route{
+				{
+					ID:          "a",
+					NetID:       "routeA",
+					Peer:        localPeerKey,
+					Network:     netip.MustParsePrefix("100.64.252.250/30"),
+					NetworkType: route.IPv4Network,
+					Metric:      9999,
+					Masquerade:  false,
+					Enabled:     true,
+				},
+				{
+					ID:          "b",
+					NetID:       "routeB",
+					Peer:        localPeerKey,
+					Network:     netip.MustParsePrefix("8.8.8.9/32"),
+					NetworkType: route.IPv4Network,
+					Metric:      9999,
+					Masquerade:  false,
+					Enabled:     true,
+				},
+			},
+			inputSerial:                   1,
+			shouldCheckServerRoutes:       runtime.GOOS == "linux",
+			serverRoutesExpected:          2,
+			clientNetworkWatchersExpected: 0,
+		},
+		{
+			name: "Should Create 1 Route For Client And Server",
+			inputRoutes: []*route.Route{
+				{
+					ID:          "a",
+					NetID:       "routeA",
+					Peer:        localPeerKey,
+					Network:     netip.MustParsePrefix("100.64.30.250/30"),
+					NetworkType: route.IPv4Network,
+					Metric:      9999,
+					Masquerade:  false,
+					Enabled:     true,
+				},
+				{
+					ID:          "b",
+					NetID:       "routeB",
+					Peer:        remotePeerKey1,
+					Network:     netip.MustParsePrefix("8.8.9.9/32"),
+					NetworkType: route.IPv4Network,
+					Metric:      9999,
+					Masquerade:  false,
+					Enabled:     true,
+				},
+			},
+			inputSerial:                   1,
+			shouldCheckServerRoutes:       runtime.GOOS == "linux",
+			serverRoutesExpected:          1,
+			clientNetworkWatchersExpected: 1,
+		},
+		{
+			name: "Should Create 1 HA Route and 1 Standalone",
+			inputRoutes: []*route.Route{
+				{
+					ID:          "a",
+					NetID:       "routeA",
+					Peer:        remotePeerKey1,
+					Network:     netip.MustParsePrefix("8.8.20.0/24"),
+					NetworkType: route.IPv4Network,
+					Metric:      9999,
+					Masquerade:  false,
+					Enabled:     true,
+				},
+				{
+					ID:          "b",
+					NetID:       "routeA",
+					Peer:        remotePeerKey2,
+					Network:     netip.MustParsePrefix("8.8.20.0/24"),
+					NetworkType: route.IPv4Network,
+					Metric:      9999,
+					Masquerade:  false,
+					Enabled:     true,
+				},
+				{
+					ID:          "c",
+					NetID:       "routeB",
+					Peer:        remotePeerKey1,
+					Network:     netip.MustParsePrefix("8.8.9.9/32"),
+					NetworkType: route.IPv4Network,
+					Metric:      9999,
+					Masquerade:  false,
+					Enabled:     true,
+				},
+			},
+			inputSerial:                   1,
+			clientNetworkWatchersExpected: 2,
+		},
+		{
+			name: "No Small Client Route Should Be Added",
+			inputRoutes: []*route.Route{
+				{
+					ID:          "a",
+					NetID:       "routeA",
+					Peer:        remotePeerKey1,
+					Network:     netip.MustParsePrefix("0.0.0.0/0"),
+					NetworkType: route.IPv4Network,
+					Metric:      9999,
+					Masquerade:  false,
+					Enabled:     true,
+				},
+			},
+			inputSerial:                   1,
+			clientNetworkWatchersExpected: 0,
+		},
+		{
+			name: "No Server Routes Should Be Added To Non Linux",
+			inputRoutes: []*route.Route{
+				{
+					ID:          "a",
+					NetID:       "routeA",
+					Peer:        localPeerKey,
+					Network:     netip.MustParsePrefix("1.2.3.4/32"),
+					NetworkType: route.IPv4Network,
+					Metric:      9999,
+					Masquerade:  false,
+					Enabled:     true,
+				},
+			},
+			inputSerial:                   1,
+			shouldCheckServerRoutes:       runtime.GOOS != "linux",
+			serverRoutesExpected:          0,
+			clientNetworkWatchersExpected: 0,
+		},
+		{
+			name: "Remove 1 Client Route",
+			inputInitRoutes: []*route.Route{
+				{
+					ID:          "a",
+					NetID:       "routeA",
+					Peer:        remotePeerKey1,
+					Network:     netip.MustParsePrefix("100.64.251.250/30"),
+					NetworkType: route.IPv4Network,
+					Metric:      9999,
+					Masquerade:  false,
+					Enabled:     true,
+				},
+				{
+					ID:          "b",
+					NetID:       "routeB",
+					Peer:        remotePeerKey1,
+					Network:     netip.MustParsePrefix("8.8.8.8/32"),
+					NetworkType: route.IPv4Network,
+					Metric:      9999,
+					Masquerade:  false,
+					Enabled:     true,
+				},
+			},
+			inputRoutes: []*route.Route{
+				{
+					ID:          "a",
+					NetID:       "routeA",
+					Peer:        remotePeerKey1,
+					Network:     netip.MustParsePrefix("100.64.251.250/30"),
+					NetworkType: route.IPv4Network,
+					Metric:      9999,
+					Masquerade:  false,
+					Enabled:     true,
+				},
+			},
+			inputSerial:                   1,
+			clientNetworkWatchersExpected: 1,
+		},
+		{
+			name: "Update Route to HA",
+			inputInitRoutes: []*route.Route{
+				{
+					ID:          "a",
+					NetID:       "routeA",
+					Peer:        remotePeerKey1,
+					Network:     netip.MustParsePrefix("100.64.251.250/30"),
+					NetworkType: route.IPv4Network,
+					Metric:      9999,
+					Masquerade:  false,
+					Enabled:     true,
+				},
+				{
+					ID:          "b",
+					NetID:       "routeB",
+					Peer:        remotePeerKey1,
+					Network:     netip.MustParsePrefix("8.8.8.8/32"),
+					NetworkType: route.IPv4Network,
+					Metric:      9999,
+					Masquerade:  false,
+					Enabled:     true,
+				},
+			},
+			inputRoutes: []*route.Route{
+				{
+					ID:          "a",
+					NetID:       "routeA",
+					Peer:        remotePeerKey1,
+					Network:     netip.MustParsePrefix("100.64.251.250/30"),
+					NetworkType: route.IPv4Network,
+					Metric:      9999,
+					Masquerade:  false,
+					Enabled:     true,
+				},
+				{
+					ID:          "b",
+					NetID:       "routeA",
+					Peer:        remotePeerKey2,
+					Network:     netip.MustParsePrefix("100.64.251.250/30"),
+					NetworkType: route.IPv4Network,
+					Metric:      9999,
+					Masquerade:  false,
+					Enabled:     true,
+				},
+			},
+			inputSerial:                   1,
+			clientNetworkWatchersExpected: 1,
+		},
+		{
+			name: "Remove Client Routes",
+			inputInitRoutes: []*route.Route{
+				{
+					ID:          "a",
+					NetID:       "routeA",
+					Peer:        remotePeerKey1,
+					Network:     netip.MustParsePrefix("100.64.251.250/30"),
+					NetworkType: route.IPv4Network,
+					Metric:      9999,
+					Masquerade:  false,
+					Enabled:     true,
+				},
+				{
+					ID:          "b",
+					NetID:       "routeB",
+					Peer:        remotePeerKey1,
+					Network:     netip.MustParsePrefix("8.8.8.8/32"),
+					NetworkType: route.IPv4Network,
+					Metric:      9999,
+					Masquerade:  false,
+					Enabled:     true,
+				},
+			},
+			inputRoutes:                   []*route.Route{},
+			inputSerial:                   1,
+			clientNetworkWatchersExpected: 0,
+		},
+		{
+			name: "Remove All Routes",
+			inputInitRoutes: []*route.Route{
+				{
+					ID:          "a",
+					NetID:       "routeA",
+					Peer:        localPeerKey,
+					Network:     netip.MustParsePrefix("100.64.251.250/30"),
+					NetworkType: route.IPv4Network,
+					Metric:      9999,
+					Masquerade:  false,
+					Enabled:     true,
+				},
+				{
+					ID:          "b",
+					NetID:       "routeB",
+					Peer:        remotePeerKey1,
+					Network:     netip.MustParsePrefix("8.8.8.8/32"),
+					NetworkType: route.IPv4Network,
+					Metric:      9999,
+					Masquerade:  false,
+					Enabled:     true,
+				},
+			},
+			inputRoutes:                   []*route.Route{},
+			inputSerial:                   1,
+			shouldCheckServerRoutes:       true,
+			serverRoutesExpected:          0,
+			clientNetworkWatchersExpected: 0,
+		},
+	}
+
+	for n, testCase := range testCases {
+		t.Run(testCase.name, func(t *testing.T) {
+			wgInterface, err := iface.NewWGIFace(fmt.Sprintf("utun43%d", n), "100.65.65.2/24", iface.DefaultMTU)
+			require.NoError(t, err, "should create testing WGIface interface")
+			defer wgInterface.Close()
+
+			err = wgInterface.Create()
+			require.NoError(t, err, "should create testing wireguard interface")
+
+			statusRecorder := status.NewRecorder()
+			ctx := context.TODO()
+			routeManager := NewManager(ctx, localPeerKey, wgInterface, statusRecorder)
+			defer routeManager.Stop()
+
+			if len(testCase.inputInitRoutes) > 0 {
+				err = routeManager.UpdateRoutes(testCase.inputSerial, testCase.inputRoutes)
+				require.NoError(t, err, "should update routes with init routes")
+			}
+
+			err = routeManager.UpdateRoutes(testCase.inputSerial+uint64(len(testCase.inputInitRoutes)), testCase.inputRoutes)
+			require.NoError(t, err, "should update routes")
+
+			require.Len(t, routeManager.clientNetworks, testCase.clientNetworkWatchersExpected, "client networks size should match")
+
+			if testCase.shouldCheckServerRoutes {
+				require.Len(t, routeManager.serverRoutes, testCase.serverRoutesExpected, "server networks size should match")
+			}
+		})
+	}
+}

client/internal/routemanager/mock.go

@@ -0,0 +1,27 @@
+package routemanager
+
+import (
+	"fmt"
+	"github.com/netbirdio/netbird/route"
+)
+
+// MockManager is the mock instance of a route manager
+type MockManager struct {
+	UpdateRoutesFunc func(updateSerial uint64, newRoutes []*route.Route) error
+	StopFunc         func()
+}
+
+// UpdateRoutes mock implementation of UpdateRoutes from Manager interface
+func (m *MockManager) UpdateRoutes(updateSerial uint64, newRoutes []*route.Route) error {
+	if m.UpdateRoutesFunc != nil {
+		return m.UpdateRoutesFunc(updateSerial, newRoutes)
+	}
+	return fmt.Errorf("method UpdateRoutes is not implemented")
+}
+
+// Stop mock implementation of Stop from Manager interface
+func (m *MockManager) Stop() {
+	if m.StopFunc != nil {
+		m.StopFunc()
+	}
+}

client/internal/routemanager/nftables_linux.go

@@ -0,0 +1,384 @@
+package routemanager
+
+import (
+	"context"
+	"fmt"
+	"github.com/google/nftables/binaryutil"
+	"github.com/google/nftables/expr"
+	log "github.com/sirupsen/logrus"
+	"net"
+	"net/netip"
+	"sync"
+)
+import "github.com/google/nftables"
+
+//
+const (
+	nftablesTable                  = "netbird-rt"
+	nftablesRoutingForwardingChain = "netbird-rt-fwd"
+	nftablesRoutingNatChain        = "netbird-rt-nat"
+)
+
+// constants needed to create nftable rules
+const (
+	ipv4Len                  = 4
+	ipv4SrcOffset            = 12
+	ipv4DestOffset           = 16
+	ipv6Len                  = 16
+	ipv6SrcOffset            = 8
+	ipv6DestOffset           = 24
+	exprDirectionSource      = "source"
+	exprDirectionDestination = "destination"
+)
+
+// some presets for building nftable rules
+var (
+	zeroXor = binaryutil.NativeEndian.PutUint32(0)
+
+	zeroXor6 = append(binaryutil.NativeEndian.PutUint64(0), binaryutil.NativeEndian.PutUint64(0)...)
+
+	exprAllowRelatedEstablished = []expr.Any{
+		&expr.Ct{
+			Register:       1,
+			SourceRegister: false,
+			Key:            0,
+		},
+		&expr.Bitwise{
+			DestRegister:   1,
+			SourceRegister: 1,
+			Len:            4,
+			Mask:           []uint8{0x6, 0x0, 0x0, 0x0},
+			Xor:            zeroXor,
+		},
+		&expr.Cmp{
+			Register: 1,
+			Data:     binaryutil.NativeEndian.PutUint32(0),
+		},
+		&expr.Counter{},
+		&expr.Verdict{
+			Kind: expr.VerdictAccept,
+		},
+	}
+
+	exprCounterAccept = []expr.Any{
+		&expr.Counter{},
+		&expr.Verdict{
+			Kind: expr.VerdictAccept,
+		},
+	}
+)
+
+type nftablesManager struct {
+	ctx       context.Context
+	stop      context.CancelFunc
+	conn      *nftables.Conn
+	tableIPv4 *nftables.Table
+	tableIPv6 *nftables.Table
+	chains    map[string]map[string]*nftables.Chain
+	rules     map[string]*nftables.Rule
+	mux       sync.Mutex
+}
+
+// CleanRoutingRules cleans existing nftables rules from the system
+func (n *nftablesManager) CleanRoutingRules() {
+	n.mux.Lock()
+	defer n.mux.Unlock()
+	log.Debug("flushing tables")
+	n.conn.FlushTable(n.tableIPv6)
+	n.conn.FlushTable(n.tableIPv4)
+	log.Debugf("flushing tables result in: %v error", n.conn.Flush())
+}
+
+// RestoreOrCreateContainers restores existing nftables containers (tables and chains)
+// if they don't exist, we create them
+func (n *nftablesManager) RestoreOrCreateContainers() error {
+	n.mux.Lock()
+	defer n.mux.Unlock()
+
+	if n.tableIPv6 != nil && n.tableIPv4 != nil {
+		log.Debugf("nftables: containers already restored, skipping")
+		return nil
+	}
+
+	tables, err := n.conn.ListTables()
+	if err != nil {
+		return fmt.Errorf("nftables: unable to list tables: %v", err)
+	}
+
+	for _, table := range tables {
+		if table.Name == nftablesTable {
+			if table.Family == nftables.TableFamilyIPv4 {
+				n.tableIPv4 = table
+				continue
+			}
+			n.tableIPv6 = table
+		}
+	}
+
+	if n.tableIPv4 == nil {
+		n.tableIPv4 = n.conn.AddTable(&nftables.Table{
+			Name:   nftablesTable,
+			Family: nftables.TableFamilyIPv4,
+		})
+	}
+
+	if n.tableIPv6 == nil {
+		n.tableIPv6 = n.conn.AddTable(&nftables.Table{
+			Name:   nftablesTable,
+			Family: nftables.TableFamilyIPv6,
+		})
+	}
+
+	chains, err := n.conn.ListChains()
+	if err != nil {
+		return fmt.Errorf("nftables: unable to list chains: %v", err)
+	}
+
+	n.chains[ipv4] = make(map[string]*nftables.Chain)
+	n.chains[ipv6] = make(map[string]*nftables.Chain)
+
+	for _, chain := range chains {
+		switch {
+		case chain.Table.Name == nftablesTable && chain.Table.Family == nftables.TableFamilyIPv4:
+			n.chains[ipv4][chain.Name] = chain
+		case chain.Table.Name == nftablesTable && chain.Table.Family == nftables.TableFamilyIPv6:
+			n.chains[ipv6][chain.Name] = chain
+		}
+	}
+
+	if _, found := n.chains[ipv4][nftablesRoutingForwardingChain]; !found {
+		n.chains[ipv4][nftablesRoutingForwardingChain] = n.conn.AddChain(&nftables.Chain{
+			Name:     nftablesRoutingForwardingChain,
+			Table:    n.tableIPv4,
+			Hooknum:  nftables.ChainHookForward,
+			Priority: nftables.ChainPriorityNATDest + 1,
+			Type:     nftables.ChainTypeFilter,
+		})
+	}
+
+	if _, found := n.chains[ipv4][nftablesRoutingNatChain]; !found {
+		n.chains[ipv4][nftablesRoutingNatChain] = n.conn.AddChain(&nftables.Chain{
+			Name:     nftablesRoutingNatChain,
+			Table:    n.tableIPv4,
+			Hooknum:  nftables.ChainHookPostrouting,
+			Priority: nftables.ChainPriorityNATSource - 1,
+			Type:     nftables.ChainTypeNAT,
+		})
+	}
+
+	if _, found := n.chains[ipv6][nftablesRoutingForwardingChain]; !found {
+		n.chains[ipv6][nftablesRoutingForwardingChain] = n.conn.AddChain(&nftables.Chain{
+			Name:     nftablesRoutingForwardingChain,
+			Table:    n.tableIPv6,
+			Hooknum:  nftables.ChainHookForward,
+			Priority: nftables.ChainPriorityNATDest + 1,
+			Type:     nftables.ChainTypeFilter,
+		})
+	}
+
+	if _, found := n.chains[ipv6][nftablesRoutingNatChain]; !found {
+		n.chains[ipv6][nftablesRoutingNatChain] = n.conn.AddChain(&nftables.Chain{
+			Name:     nftablesRoutingNatChain,
+			Table:    n.tableIPv6,
+			Hooknum:  nftables.ChainHookPostrouting,
+			Priority: nftables.ChainPriorityNATSource - 1,
+			Type:     nftables.ChainTypeNAT,
+		})
+	}
+
+	err = n.refreshRulesMap()
+	if err != nil {
+		return err
+	}
+
+	n.checkOrCreateDefaultForwardingRules()
+	err = n.conn.Flush()
+	if err != nil {
+		return fmt.Errorf("nftables: unable to initialize table: %v", err)
+	}
+	return nil
+}
+
+// refreshRulesMap refreshes the rule map with the latest rules. this is useful to avoid
+// duplicates and to get missing attributes that we don't have when adding new rules
+func (n *nftablesManager) refreshRulesMap() error {
+	for _, registeredChains := range n.chains {
+		for _, chain := range registeredChains {
+			rules, err := n.conn.GetRules(chain.Table, chain)
+			if err != nil {
+				return fmt.Errorf("nftables: unable to list rules: %v", err)
+			}
+			for _, rule := range rules {
+				if len(rule.UserData) > 0 {
+					n.rules[string(rule.UserData)] = rule
+				}
+			}
+		}
+	}
+	return nil
+}
+
+// checkOrCreateDefaultForwardingRules checks if the default forwarding rules are enabled
+func (n *nftablesManager) checkOrCreateDefaultForwardingRules() {
+	_, foundIPv4 := n.rules[ipv4Forwarding]
+	if !foundIPv4 {
+		n.rules[ipv4Forwarding] = n.conn.AddRule(&nftables.Rule{
+			Table:    n.tableIPv4,
+			Chain:    n.chains[ipv4][nftablesRoutingForwardingChain],
+			Exprs:    exprAllowRelatedEstablished,
+			UserData: []byte(ipv4Forwarding),
+		})
+	}
+
+	_, foundIPv6 := n.rules[ipv6Forwarding]
+	if !foundIPv6 {
+		n.rules[ipv6Forwarding] = n.conn.AddRule(&nftables.Rule{
+			Table:    n.tableIPv6,
+			Chain:    n.chains[ipv6][nftablesRoutingForwardingChain],
+			Exprs:    exprAllowRelatedEstablished,
+			UserData: []byte(ipv6Forwarding),
+		})
+	}
+}
+
+// InsertRoutingRules inserts a nftable rule pair to the forwarding chain and if enabled, to the nat chain
+func (n *nftablesManager) InsertRoutingRules(pair routerPair) error {
+	n.mux.Lock()
+	defer n.mux.Unlock()
+
+	prefix := netip.MustParsePrefix(pair.source)
+
+	sourceExp := generateCIDRMatcherExpressions("source", pair.source)
+	destExp := generateCIDRMatcherExpressions("destination", pair.destination)
+
+	forwardExp := append(sourceExp, append(destExp, exprCounterAccept...)...)
+	fwdKey := genKey(forwardingFormat, pair.ID)
+	if prefix.Addr().Unmap().Is4() {
+		n.rules[fwdKey] = n.conn.InsertRule(&nftables.Rule{
+			Table:    n.tableIPv4,
+			Chain:    n.chains[ipv4][nftablesRoutingForwardingChain],
+			Exprs:    forwardExp,
+			UserData: []byte(fwdKey),
+		})
+	} else {
+		n.rules[fwdKey] = n.conn.InsertRule(&nftables.Rule{
+			Table:    n.tableIPv6,
+			Chain:    n.chains[ipv6][nftablesRoutingForwardingChain],
+			Exprs:    forwardExp,
+			UserData: []byte(fwdKey),
+		})
+	}
+
+	if pair.masquerade {
+		natExp := append(sourceExp, append(destExp, &expr.Counter{}, &expr.Masq{})...)
+		natKey := genKey(natFormat, pair.ID)
+
+		if prefix.Addr().Unmap().Is4() {
+			n.rules[natKey] = n.conn.InsertRule(&nftables.Rule{
+				Table:    n.tableIPv4,
+				Chain:    n.chains[ipv4][nftablesRoutingNatChain],
+				Exprs:    natExp,
+				UserData: []byte(natKey),
+			})
+		} else {
+			n.rules[natKey] = n.conn.InsertRule(&nftables.Rule{
+				Table:    n.tableIPv6,
+				Chain:    n.chains[ipv6][nftablesRoutingNatChain],
+				Exprs:    natExp,
+				UserData: []byte(natKey),
+			})
+		}
+	}
+
+	err := n.conn.Flush()
+	if err != nil {
+		return fmt.Errorf("nftables: unable to insert rules for %s: %v", pair.destination, err)
+	}
+	return nil
+}
+
+// RemoveRoutingRules removes a nftable rule pair from forwarding and nat chains
+func (n *nftablesManager) RemoveRoutingRules(pair routerPair) error {
+	n.mux.Lock()
+	defer n.mux.Unlock()
+
+	err := n.refreshRulesMap()
+	if err != nil {
+		return err
+	}
+
+	fwdKey := genKey(forwardingFormat, pair.ID)
+	natKey := genKey(natFormat, pair.ID)
+	fwdRule, found := n.rules[fwdKey]
+	if found {
+		err = n.conn.DelRule(fwdRule)
+		if err != nil {
+			return fmt.Errorf("nftables: unable to remove forwarding rule for %s: %v", pair.destination, err)
+		}
+		log.Debugf("nftables: removing forwarding rule for %s", pair.destination)
+		delete(n.rules, fwdKey)
+	}
+	natRule, found := n.rules[natKey]
+	if found {
+		err = n.conn.DelRule(natRule)
+		if err != nil {
+			return fmt.Errorf("nftables: unable to remove nat rule for %s: %v", pair.destination, err)
+		}
+		log.Debugf("nftables: removing nat rule for %s", pair.destination)
+		delete(n.rules, natKey)
+	}
+	err = n.conn.Flush()
+	if err != nil {
+		return fmt.Errorf("nftables: received error while applying rule removal for %s: %v", pair.destination, err)
+	}
+	log.Debugf("nftables: removed rules for %s", pair.destination)
+	return nil
+}
+
+// getPayloadDirectives get expression directives based on ip version and direction
+func getPayloadDirectives(direction string, isIPv4 bool, isIPv6 bool) (uint32, uint32, []byte) {
+	switch {
+	case direction == exprDirectionSource && isIPv4:
+		return ipv4SrcOffset, ipv4Len, zeroXor
+	case direction == exprDirectionDestination && isIPv4:
+		return ipv4DestOffset, ipv4Len, zeroXor
+	case direction == exprDirectionSource && isIPv6:
+		return ipv6SrcOffset, ipv6Len, zeroXor6
+	case direction == exprDirectionDestination && isIPv6:
+		return ipv6DestOffset, ipv6Len, zeroXor6
+	default:
+		panic("no matched payload directive")
+	}
+}
+
+// generateCIDRMatcherExpressions generates nftables expressions that matches a CIDR
+func generateCIDRMatcherExpressions(direction string, cidr string) []expr.Any {
+	ip, network, _ := net.ParseCIDR(cidr)
+	ipToAdd, _ := netip.AddrFromSlice(ip)
+	add := ipToAdd.Unmap()
+
+	offSet, packetLen, zeroXor := getPayloadDirectives(direction, add.Is4(), add.Is6())
+
+	return []expr.Any{
+		// fetch src add
+		&expr.Payload{
+			DestRegister: 1,
+			Base:         expr.PayloadBaseNetworkHeader,
+			Offset:       offSet,
+			Len:          packetLen,
+		},
+		// net mask
+		&expr.Bitwise{
+			DestRegister:   1,
+			SourceRegister: 1,
+			Len:            packetLen,
+			Mask:           network.Mask,
+			Xor:            zeroXor,
+		},
+		// net address
+		&expr.Cmp{
+			Register: 1,
+			Data:     add.AsSlice(),
+		},
+	}
+}

client/internal/routemanager/nftables_linux_test.go

@@ -0,0 +1,270 @@
+package routemanager
+
+import (
+	"context"
+	"github.com/google/nftables"
+	"github.com/google/nftables/expr"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"testing"
+)
+
+func TestNftablesManager_RestoreOrCreateContainers(t *testing.T) {
+
+	ctx, cancel := context.WithCancel(context.TODO())
+
+	manager := &nftablesManager{
+		ctx:    ctx,
+		stop:   cancel,
+		conn:   &nftables.Conn{},
+		chains: make(map[string]map[string]*nftables.Chain),
+		rules:  make(map[string]*nftables.Rule),
+	}
+
+	nftablesTestingClient := &nftables.Conn{}
+
+	defer manager.CleanRoutingRules()
+
+	err := manager.RestoreOrCreateContainers()
+	require.NoError(t, err, "shouldn't return error")
+
+	require.Len(t, manager.chains, 2, "should have created chains for ipv4 and ipv6")
+	require.Len(t, manager.chains[ipv4], 2, "should have created chains for ipv4")
+	require.Len(t, manager.chains[ipv4], 2, "should have created chains for ipv6")
+	require.Len(t, manager.rules, 2, "should have created rules for ipv4 and ipv6")
+
+	pair := routerPair{
+		ID:          "abc",
+		source:      "100.100.100.1/32",
+		destination: "100.100.100.0/24",
+		masquerade:  true,
+	}
+
+	sourceExp := generateCIDRMatcherExpressions("source", pair.source)
+	destExp := generateCIDRMatcherExpressions("destination", pair.destination)
+
+	forward4Exp := append(sourceExp, append(destExp, exprCounterAccept...)...)
+	forward4RuleKey := genKey(forwardingFormat, pair.ID)
+	inserted4Forwarding := nftablesTestingClient.InsertRule(&nftables.Rule{
+		Table:    manager.tableIPv4,
+		Chain:    manager.chains[ipv4][nftablesRoutingForwardingChain],
+		Exprs:    forward4Exp,
+		UserData: []byte(forward4RuleKey),
+	})
+
+	nat4Exp := append(sourceExp, append(destExp, &expr.Counter{}, &expr.Masq{})...)
+	nat4RuleKey := genKey(natFormat, pair.ID)
+
+	inserted4Nat := nftablesTestingClient.InsertRule(&nftables.Rule{
+		Table:    manager.tableIPv4,
+		Chain:    manager.chains[ipv4][nftablesRoutingNatChain],
+		Exprs:    nat4Exp,
+		UserData: []byte(nat4RuleKey),
+	})
+
+	err = nftablesTestingClient.Flush()
+	require.NoError(t, err, "shouldn't return error")
+
+	pair = routerPair{
+		ID:          "xyz",
+		source:      "fc00::1/128",
+		destination: "fc11::/64",
+		masquerade:  true,
+	}
+
+	sourceExp = generateCIDRMatcherExpressions("source", pair.source)
+	destExp = generateCIDRMatcherExpressions("destination", pair.destination)
+
+	forward6Exp := append(sourceExp, append(destExp, exprCounterAccept...)...)
+	forward6RuleKey := genKey(forwardingFormat, pair.ID)
+	inserted6Forwarding := nftablesTestingClient.InsertRule(&nftables.Rule{
+		Table:    manager.tableIPv6,
+		Chain:    manager.chains[ipv6][nftablesRoutingForwardingChain],
+		Exprs:    forward6Exp,
+		UserData: []byte(forward6RuleKey),
+	})
+
+	nat6Exp := append(sourceExp, append(destExp, &expr.Counter{}, &expr.Masq{})...)
+	nat6RuleKey := genKey(natFormat, pair.ID)
+
+	inserted6Nat := nftablesTestingClient.InsertRule(&nftables.Rule{
+		Table:    manager.tableIPv6,
+		Chain:    manager.chains[ipv6][nftablesRoutingNatChain],
+		Exprs:    nat6Exp,
+		UserData: []byte(nat6RuleKey),
+	})
+
+	err = nftablesTestingClient.Flush()
+	require.NoError(t, err, "shouldn't return error")
+
+	manager.tableIPv4 = nil
+	manager.tableIPv6 = nil
+
+	err = manager.RestoreOrCreateContainers()
+	require.NoError(t, err, "shouldn't return error")
+
+	require.Len(t, manager.chains, 2, "should have created chains for ipv4 and ipv6")
+	require.Len(t, manager.chains[ipv4], 2, "should have created chains for ipv4")
+	require.Len(t, manager.chains[ipv4], 2, "should have created chains for ipv6")
+	require.Len(t, manager.rules, 6, "should have restored all rules for ipv4 and ipv6")
+
+	foundRule, found := manager.rules[forward4RuleKey]
+	require.True(t, found, "forwarding rule should exist in the map")
+	assert.Equal(t, inserted4Forwarding.Exprs, foundRule.Exprs, "stored forwarding rule expressions should match")
+
+	foundRule, found = manager.rules[nat4RuleKey]
+	require.True(t, found, "nat rule should exist in the map")
+	// match len of output as nftables client doesn't return expressions with masquerade expression
+	assert.ElementsMatch(t, inserted4Nat.Exprs[:len(foundRule.Exprs)], foundRule.Exprs, "stored nat rule expressions should match")
+
+	foundRule, found = manager.rules[forward6RuleKey]
+	require.True(t, found, "forwarding rule should exist in the map")
+	assert.Equal(t, inserted6Forwarding.Exprs, foundRule.Exprs, "stored forward rule should match")
+
+	foundRule, found = manager.rules[nat6RuleKey]
+	require.True(t, found, "nat rule should exist in the map")
+	// match len of output as nftables client doesn't return expressions with masquerade expression
+	assert.ElementsMatch(t, inserted6Nat.Exprs[:len(foundRule.Exprs)], foundRule.Exprs, "stored nat rule should match")
+}
+
+func TestNftablesManager_InsertRoutingRules(t *testing.T) {
+
+	for _, testCase := range insertRuleTestCases {
+		t.Run(testCase.name, func(t *testing.T) {
+			ctx, cancel := context.WithCancel(context.TODO())
+
+			manager := &nftablesManager{
+				ctx:    ctx,
+				stop:   cancel,
+				conn:   &nftables.Conn{},
+				chains: make(map[string]map[string]*nftables.Chain),
+				rules:  make(map[string]*nftables.Rule),
+			}
+
+			nftablesTestingClient := &nftables.Conn{}
+
+			defer manager.CleanRoutingRules()
+
+			err := manager.RestoreOrCreateContainers()
+			require.NoError(t, err, "shouldn't return error")
+
+			err = manager.InsertRoutingRules(testCase.inputPair)
+			require.NoError(t, err, "forwarding pair should be inserted")
+
+			sourceExp := generateCIDRMatcherExpressions("source", testCase.inputPair.source)
+			destExp := generateCIDRMatcherExpressions("destination", testCase.inputPair.destination)
+			testingExpression := append(sourceExp, destExp...)
+			fwdRuleKey := genKey(forwardingFormat, testCase.inputPair.ID)
+
+			found := 0
+			for _, registeredChains := range manager.chains {
+				for _, chain := range registeredChains {
+					rules, err := nftablesTestingClient.GetRules(chain.Table, chain)
+					require.NoError(t, err, "should list rules for %s table and %s chain", chain.Table.Name, chain.Name)
+					for _, rule := range rules {
+						if len(rule.UserData) > 0 && string(rule.UserData) == fwdRuleKey {
+							require.ElementsMatchf(t, rule.Exprs[:len(testingExpression)], testingExpression, "forwarding rule elements should match")
+							found = 1
+						}
+					}
+				}
+			}
+
+			require.Equal(t, 1, found, "should find at least 1 rule to test")
+
+			if testCase.inputPair.masquerade {
+				natRuleKey := genKey(natFormat, testCase.inputPair.ID)
+				found := 0
+				for _, registeredChains := range manager.chains {
+					for _, chain := range registeredChains {
+						rules, err := nftablesTestingClient.GetRules(chain.Table, chain)
+						require.NoError(t, err, "should list rules for %s table and %s chain", chain.Table.Name, chain.Name)
+						for _, rule := range rules {
+							if len(rule.UserData) > 0 && string(rule.UserData) == natRuleKey {
+								require.ElementsMatchf(t, rule.Exprs[:len(testingExpression)], testingExpression, "nat rule elements should match")
+								found = 1
+							}
+						}
+					}
+				}
+				require.Equal(t, 1, found, "should find at least 1 rule to test")
+			}
+		})
+	}
+}
+
+func TestNftablesManager_RemoveRoutingRules(t *testing.T) {
+
+	for _, testCase := range removeRuleTestCases {
+		t.Run(testCase.name, func(t *testing.T) {
+			ctx, cancel := context.WithCancel(context.TODO())
+
+			manager := &nftablesManager{
+				ctx:    ctx,
+				stop:   cancel,
+				conn:   &nftables.Conn{},
+				chains: make(map[string]map[string]*nftables.Chain),
+				rules:  make(map[string]*nftables.Rule),
+			}
+
+			nftablesTestingClient := &nftables.Conn{}
+
+			defer manager.CleanRoutingRules()
+
+			err := manager.RestoreOrCreateContainers()
+			require.NoError(t, err, "shouldn't return error")
+
+			table := manager.tableIPv4
+			if testCase.ipVersion == ipv6 {
+				table = manager.tableIPv6
+			}
+
+			sourceExp := generateCIDRMatcherExpressions("source", testCase.inputPair.source)
+			destExp := generateCIDRMatcherExpressions("destination", testCase.inputPair.destination)
+
+			forwardExp := append(sourceExp, append(destExp, exprCounterAccept...)...)
+			forwardRuleKey := genKey(forwardingFormat, testCase.inputPair.ID)
+			insertedForwarding := nftablesTestingClient.InsertRule(&nftables.Rule{
+				Table:    table,
+				Chain:    manager.chains[testCase.ipVersion][nftablesRoutingForwardingChain],
+				Exprs:    forwardExp,
+				UserData: []byte(forwardRuleKey),
+			})
+
+			natExp := append(sourceExp, append(destExp, &expr.Counter{}, &expr.Masq{})...)
+			natRuleKey := genKey(natFormat, testCase.inputPair.ID)
+
+			insertedNat := nftablesTestingClient.InsertRule(&nftables.Rule{
+				Table:    table,
+				Chain:    manager.chains[testCase.ipVersion][nftablesRoutingNatChain],
+				Exprs:    natExp,
+				UserData: []byte(natRuleKey),
+			})
+
+			err = nftablesTestingClient.Flush()
+			require.NoError(t, err, "shouldn't return error")
+
+			manager.tableIPv4 = nil
+			manager.tableIPv6 = nil
+
+			err = manager.RestoreOrCreateContainers()
+			require.NoError(t, err, "shouldn't return error")
+
+			err = manager.RemoveRoutingRules(testCase.inputPair)
+			require.NoError(t, err, "shouldn't return error")
+
+			for _, registeredChains := range manager.chains {
+				for _, chain := range registeredChains {
+					rules, err := nftablesTestingClient.GetRules(chain.Table, chain)
+					require.NoError(t, err, "should list rules for %s table and %s chain", chain.Table.Name, chain.Name)
+					for _, rule := range rules {
+						if len(rule.UserData) > 0 {
+							require.NotEqual(t, insertedForwarding.UserData, rule.UserData, "forwarding rule should exist")
+							require.NotEqual(t, insertedNat.UserData, rule.UserData, "nat rule should exist")
+						}
+					}
+				}
+			}
+		})
+	}
+}

client/internal/routemanager/server.go

@@ -0,0 +1,67 @@
+package routemanager
+
+import (
+	"github.com/netbirdio/netbird/route"
+	log "github.com/sirupsen/logrus"
+	"net/netip"
+	"sync"
+)
+
+type serverRouter struct {
+	routes map[string]*route.Route
+	// best effort to keep net forward configuration as it was
+	netForwardHistoryEnabled bool
+	mux                      sync.Mutex
+	firewall                 firewallManager
+}
+
+type routerPair struct {
+	ID          string
+	source      string
+	destination string
+	masquerade  bool
+}
+
+func routeToRouterPair(source string, route *route.Route) routerPair {
+	parsed := netip.MustParsePrefix(source).Masked()
+	return routerPair{
+		ID:          route.ID,
+		source:      parsed.String(),
+		destination: route.Network.Masked().String(),
+		masquerade:  route.Masquerade,
+	}
+}
+
+func (m *DefaultManager) removeFromServerNetwork(route *route.Route) error {
+	select {
+	case <-m.ctx.Done():
+		log.Infof("not removing from server network because context is done")
+		return m.ctx.Err()
+	default:
+		m.serverRouter.mux.Lock()
+		defer m.serverRouter.mux.Unlock()
+		err := m.serverRouter.firewall.RemoveRoutingRules(routeToRouterPair(m.wgInterface.Address.String(), route))
+		if err != nil {
+			return err
+		}
+		delete(m.serverRouter.routes, route.ID)
+		return nil
+	}
+}
+
+func (m *DefaultManager) addToServerNetwork(route *route.Route) error {
+	select {
+	case <-m.ctx.Done():
+		log.Infof("not adding to server network because context is done")
+		return m.ctx.Err()
+	default:
+		m.serverRouter.mux.Lock()
+		defer m.serverRouter.mux.Unlock()
+		err := m.serverRouter.firewall.InsertRoutingRules(routeToRouterPair(m.wgInterface.Address.String(), route))
+		if err != nil {
+			return err
+		}
+		m.serverRouter.routes[route.ID] = route
+		return nil
+	}
+}

client/internal/routemanager/systemops.go

@@ -0,0 +1,55 @@
+package routemanager
+
+import (
+	"fmt"
+	"github.com/libp2p/go-netroute"
+	log "github.com/sirupsen/logrus"
+	"net"
+	"net/netip"
+)
+
+var errRouteNotFound = fmt.Errorf("route not found")
+
+func addToRouteTableIfNoExists(prefix netip.Prefix, addr string) error {
+	gateway, err := getExistingRIBRouteGateway(netip.MustParsePrefix("0.0.0.0/0"))
+	if err != nil && err != errRouteNotFound {
+		return err
+	}
+	prefixGateway, err := getExistingRIBRouteGateway(prefix)
+	if err != nil && err != errRouteNotFound {
+		return err
+	}
+
+	if prefixGateway != nil && !prefixGateway.Equal(gateway) {
+		log.Warnf("route for network %s already exist and is pointing to the gateway: %s, won't add another one", prefix, prefixGateway)
+		return nil
+	}
+	return addToRouteTable(prefix, addr)
+}
+
+func removeFromRouteTableIfNonSystem(prefix netip.Prefix, addr string) error {
+	addrIP := net.ParseIP(addr)
+	prefixGateway, err := getExistingRIBRouteGateway(prefix)
+	if err != nil {
+		return err
+	}
+	if prefixGateway != nil && !prefixGateway.Equal(addrIP) {
+		log.Warnf("route for network %s is pointing to a different gateway: %s, should be pointing to: %s, not removing", prefix, prefixGateway, addrIP)
+		return nil
+	}
+	return removeFromRouteTable(prefix)
+}
+
+func getExistingRIBRouteGateway(prefix netip.Prefix) (net.IP, error) {
+	r, err := netroute.New()
+	if err != nil {
+		return nil, err
+	}
+	_, _, localGatewayAddress, err := r.Route(prefix.Addr().AsSlice())
+	if err != nil {
+		log.Errorf("getting routes returned an error: %v", err)
+		return nil, errRouteNotFound
+	}
+
+	return localGatewayAddress, nil
+}

client/internal/routemanager/systemops_linux.go

@@ -0,0 +1,73 @@
+package routemanager
+
+import (
+	"github.com/vishvananda/netlink"
+	"io/ioutil"
+	"net"
+	"net/netip"
+)
+
+const ipv4ForwardingPath = "/proc/sys/net/ipv4/ip_forward"
+
+func addToRouteTable(prefix netip.Prefix, addr string) error {
+	_, ipNet, err := net.ParseCIDR(prefix.String())
+	if err != nil {
+		return err
+	}
+
+	addrMask := "/32"
+	if prefix.Addr().Unmap().Is6() {
+		addrMask = "/128"
+	}
+
+	ip, _, err := net.ParseCIDR(addr + addrMask)
+	if err != nil {
+		return err
+	}
+
+	route := &netlink.Route{
+		Scope: netlink.SCOPE_UNIVERSE,
+		Dst:   ipNet,
+		Gw:    ip,
+	}
+
+	err = netlink.RouteAdd(route)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func removeFromRouteTable(prefix netip.Prefix) error {
+	_, ipNet, err := net.ParseCIDR(prefix.String())
+	if err != nil {
+		return err
+	}
+
+	route := &netlink.Route{
+		Scope: netlink.SCOPE_UNIVERSE,
+		Dst:   ipNet,
+	}
+
+	err = netlink.RouteDel(route)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func enableIPForwarding() error {
+	err := ioutil.WriteFile(ipv4ForwardingPath, []byte("1"), 0644)
+	return err
+}
+
+func isNetForwardHistoryEnabled() bool {
+	out, err := ioutil.ReadFile(ipv4ForwardingPath)
+	if err != nil {
+		// todo
+		panic(err)
+	}
+	return string(out) == "1"
+}

client/internal/routemanager/systemops_nonlinux.go

@@ -0,0 +1,41 @@
+//go:build !linux
+// +build !linux
+
+package routemanager
+
+import (
+	log "github.com/sirupsen/logrus"
+	"net/netip"
+	"os/exec"
+	"runtime"
+)
+
+func addToRouteTable(prefix netip.Prefix, addr string) error {
+	cmd := exec.Command("route", "add", prefix.String(), addr)
+	out, err := cmd.Output()
+	if err != nil {
+		return err
+	}
+	log.Debugf(string(out))
+	return nil
+}
+
+func removeFromRouteTable(prefix netip.Prefix) error {
+	cmd := exec.Command("route", "delete", prefix.String())
+	out, err := cmd.Output()
+	if err != nil {
+		return err
+	}
+	log.Debugf(string(out))
+	return nil
+}
+
+func enableIPForwarding() error {
+	log.Infof("enable IP forwarding is not implemented on %s", runtime.GOOS)
+	return nil
+}
+
+func isNetForwardHistoryEnabled() bool {
+	log.Infof("check netforwad history is not implemented on %s", runtime.GOOS)
+	return false
+}

client/internal/routemanager/systemops_test.go

@@ -0,0 +1,68 @@
+package routemanager
+
+import (
+	"fmt"
+	"github.com/netbirdio/netbird/iface"
+	"github.com/stretchr/testify/require"
+	"net/netip"
+	"testing"
+)
+
+func TestAddRemoveRoutes(t *testing.T) {
+	testCases := []struct {
+		name                   string
+		prefix                 netip.Prefix
+		shouldRouteToWireguard bool
+		shouldBeRemoved        bool
+	}{
+		{
+			name:                   "Should Add And Remove Route",
+			prefix:                 netip.MustParsePrefix("100.66.120.0/24"),
+			shouldRouteToWireguard: true,
+			shouldBeRemoved:        true,
+		},
+		{
+			name:                   "Should Not Add Or Remove Route",
+			prefix:                 netip.MustParsePrefix("127.0.0.1/32"),
+			shouldRouteToWireguard: false,
+			shouldBeRemoved:        false,
+		},
+	}
+
+	for n, testCase := range testCases {
+		t.Run(testCase.name, func(t *testing.T) {
+			wgInterface, err := iface.NewWGIFace(fmt.Sprintf("utun53%d", n), "100.65.75.2/24", iface.DefaultMTU)
+			require.NoError(t, err, "should create testing WGIface interface")
+			defer wgInterface.Close()
+
+			err = wgInterface.Create()
+			require.NoError(t, err, "should create testing wireguard interface")
+
+			err = addToRouteTableIfNoExists(testCase.prefix, wgInterface.GetAddress().IP.String())
+			require.NoError(t, err, "should not return err")
+
+			prefixGateway, err := getExistingRIBRouteGateway(testCase.prefix)
+			require.NoError(t, err, "should not return err")
+			if testCase.shouldRouteToWireguard {
+				require.Equal(t, wgInterface.GetAddress().IP.String(), prefixGateway.String(), "route should point to wireguard interface IP")
+			} else {
+				require.NotEqual(t, wgInterface.GetAddress().IP.String(), prefixGateway.String(), "route should point to a different interface")
+			}
+
+			err = removeFromRouteTableIfNonSystem(testCase.prefix, wgInterface.GetAddress().IP.String())
+			require.NoError(t, err, "should not return err")
+
+			prefixGateway, err = getExistingRIBRouteGateway(testCase.prefix)
+			require.NoError(t, err, "should not return err")
+
+			internetGateway, err := getExistingRIBRouteGateway(netip.MustParsePrefix("0.0.0.0/0"))
+			require.NoError(t, err)
+
+			if testCase.shouldBeRemoved {
+				require.Equal(t, internetGateway, prefixGateway, "route should be pointing to default internet gateway")
+			} else {
+				require.NotEqual(t, internetGateway, prefixGateway, "route should be pointing to a different gateway than the internet gateway")
+			}
+		})
+	}
+}

client/status/status.go

@@ -47,17 +47,19 @@ type FullStatus struct {
 
 // Status holds a state of peers, signal and management connections
 type Status struct {
-	mux        sync.Mutex
+	mux          sync.Mutex
-	peers      map[string]PeerState
+	peers        map[string]PeerState
-	signal     SignalState
+	changeNotify map[string]chan struct{}
-	management ManagementState
+	signal       SignalState
-	localPeer  LocalPeerState
+	management   ManagementState
+	localPeer    LocalPeerState
 }
 
 // NewRecorder returns a new Status instance
 func NewRecorder() *Status {
 	return &Status{
-		peers: make(map[string]PeerState),
+		peers:        make(map[string]PeerState),
+		changeNotify: make(map[string]chan struct{}),
 	}
 }
 
@@ -74,6 +76,18 @@ func (d *Status) AddPeer(peerPubKey string) error {
 	return nil
 }
 
+// GetPeer adds peer to Daemon status map
+func (d *Status) GetPeer(peerPubKey string) (PeerState, error) {
+	d.mux.Lock()
+	defer d.mux.Unlock()
+
+	state, ok := d.peers[peerPubKey]
+	if !ok {
+		return PeerState{}, errors.New("peer not found")
+	}
+	return state, nil
+}
+
 // RemovePeer removes peer from Daemon status map
 func (d *Status) RemovePeer(peerPubKey string) error {
 	d.mux.Lock()
@@ -113,9 +127,27 @@ func (d *Status) UpdatePeerState(receivedState PeerState) error {
 
 	d.peers[receivedState.PubKey] = peerState
 
+	ch, found := d.changeNotify[receivedState.PubKey]
+	if found && ch != nil {
+		close(ch)
+		d.changeNotify[receivedState.PubKey] = nil
+	}
+
 	return nil
 }
 
+// GetPeerStateChangeNotifier returns a change notifier channel for a peer
+func (d *Status) GetPeerStateChangeNotifier(peer string) <-chan struct{} {
+	d.mux.Lock()
+	defer d.mux.Unlock()
+	ch, found := d.changeNotify[peer]
+	if !found || ch == nil {
+		ch = make(chan struct{})
+		d.changeNotify[peer] = ch
+	}
+	return ch
+}
+
 // UpdateLocalPeerState updates local peer status
 func (d *Status) UpdateLocalPeerState(localPeerState LocalPeerState) {
 	d.mux.Lock()

client/status/status_test.go

@@ -19,6 +19,21 @@ func TestAddPeer(t *testing.T) {
 	assert.Error(t, err, "should return error on duplicate")
 }
 
+func TestGetPeer(t *testing.T) {
+	key := "abc"
+	status := NewRecorder()
+	err := status.AddPeer(key)
+	assert.NoError(t, err, "shouldn't return error")
+
+	peerStatus, err := status.GetPeer(key)
+	assert.NoError(t, err, "shouldn't return error on getting peer")
+
+	assert.Equal(t, key, peerStatus.PubKey, "retrieved public key should match")
+
+	_, err = status.GetPeer("non_existing_key")
+	assert.Error(t, err, "should return error when peer doesn't exist")
+}
+
 func TestUpdatePeerState(t *testing.T) {
 	key := "abc"
 	ip := "10.10.10.10"
@@ -39,6 +54,31 @@ func TestUpdatePeerState(t *testing.T) {
 	assert.Equal(t, ip, state.IP, "ip should be equal")
 }
 
+func TestGetPeerStateChangeNotifierLogic(t *testing.T) {
+	key := "abc"
+	ip := "10.10.10.10"
+	status := NewRecorder()
+	peerState := PeerState{
+		PubKey: key,
+	}
+
+	status.peers[key] = peerState
+
+	ch := status.GetPeerStateChangeNotifier(key)
+	assert.NotNil(t, ch, "channel shouldn't be nil")
+
+	peerState.IP = ip
+
+	err := status.UpdatePeerState(peerState)
+	assert.NoError(t, err, "shouldn't return error")
+
+	select {
+	case <-ch:
+	default:
+		t.Errorf("channel wasn't closed after update")
+	}
+}
+
 func TestRemovePeer(t *testing.T) {
 	key := "abc"
 	status := NewRecorder()

go.mod

@@ -30,10 +30,13 @@ require (
 require (
 	fyne.io/fyne/v2 v2.1.4
 	github.com/c-robinson/iplib v1.0.3
+	github.com/coreos/go-iptables v0.6.0
 	github.com/creack/pty v1.1.18
 	github.com/eko/gocache/v2 v2.3.1
 	github.com/getlantern/systray v1.2.1
 	github.com/gliderlabs/ssh v0.3.4
+	github.com/google/nftables v0.0.0-20220808154552-2eca00135732
+	github.com/libp2p/go-netroute v0.2.0
 	github.com/magiconair/properties v1.8.5
 	github.com/patrickmn/go-cache v2.1.0+incompatible
 	github.com/pion/logging v0.2.2
@@ -71,6 +74,7 @@ require (
 	github.com/godbus/dbus/v5 v5.0.4 // indirect
 	github.com/goki/freetype v0.0.0-20181231101311-fa8a33aabaff // indirect
 	github.com/google/go-cmp v0.5.7 // indirect
+	github.com/google/gopacket v1.1.19 // indirect
 	github.com/inconshreveable/mousetrap v1.0.0 // indirect
 	github.com/josharian/native v0.0.0-20200817173448-b6b71def0850 // indirect
 	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
@@ -118,4 +122,4 @@ require (
 
 replace github.com/pion/ice/v2 => github.com/wiretrustee/ice/v2 v2.1.21-0.20220218121004-dc81faead4bb
 
-replace github.com/kardianos/service => github.com/netbirdio/service v0.0.0-20220901161712-56a6ec08182e
+replace github.com/kardianos/service => github.com/netbirdio/service v0.0.0-20220905002524-6ac14ad5ea84

go.sum

@@ -115,6 +115,8 @@ github.com/cncf/xds/go v0.0.0-20211001041855-01bcc9b48dfe/go.mod h1:eXthEFrGJvWH
 github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
 github.com/cncf/xds/go v0.0.0-20211130200136-a8f946100490/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
 github.com/coocood/freecache v1.2.1 h1:/v1CqMq45NFH9mp/Pt142reundeBM0dVUD3osQBeu/U=
+github.com/coreos/go-iptables v0.6.0 h1:is9qnZMPYjLd8LYqmm/qlE+wwEgJIkTYdhV3rfZo4jk=
+github.com/coreos/go-iptables v0.6.0/go.mod h1:Qe8Bv2Xik5FyTXwgIbLAnv2sWSBmvWdFETJConOQ//Q=
 github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-systemd/v22 v22.3.2/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
@@ -283,10 +285,14 @@ github.com/google/go-cmp v0.5.7/go.mod h1:n+brtR0CgQNWTVd5ZUFpTBC8YFBDLK/h/bpaJ8
 github.com/google/gofuzz v0.0.0-20161122191042-44d81051d367/go.mod h1:HP5RmnzzSNb993RKQDq4+1A4ia9nllfqcQFTQJedwGI=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/gofuzz v1.1.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
+github.com/google/gopacket v1.1.19 h1:ves8RnFZPGiFnTS0uPQStjwru6uO6h+nlr9j6fL7kF8=
+github.com/google/gopacket v1.1.19/go.mod h1:iJ8V8n6KS+z2U1A8pUwu8bW5SyEMkXJB8Yo/Vo+TKTo=
 github.com/google/martian v2.1.0+incompatible/go.mod h1:9I4somxYTbIHy5NJKHRl3wXiIaQGbYVAs8BPL6v8lEs=
 github.com/google/martian/v3 v3.0.0/go.mod h1:y5Zk1BBys9G+gd6Jrk0W3cC1+ELVxBWuIGO+w/tUAp0=
 github.com/google/martian/v3 v3.1.0/go.mod h1:y5Zk1BBys9G+gd6Jrk0W3cC1+ELVxBWuIGO+w/tUAp0=
 github.com/google/martian/v3 v3.2.1/go.mod h1:oBOf6HBosgwRXnUGWUB05QECsc6uvmMiJ3+6W4l/CUk=
+github.com/google/nftables v0.0.0-20220808154552-2eca00135732 h1:csc7dT82JiSLvq4aMyQMIQDL7986NH6Wxf/QrvOj55A=
+github.com/google/nftables v0.0.0-20220808154552-2eca00135732/go.mod h1:b97ulCCFipUC+kSin+zygkvUVpx0vyIAwxXFdY3PlNc=
 github.com/google/pprof v0.0.0-20181206194817-3ea8567a2e57/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
 github.com/google/pprof v0.0.0-20190515194954-54271f7e092f/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
 github.com/google/pprof v0.0.0-20191218002539-d4f498aebedc/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
@@ -399,6 +405,8 @@ github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/leodido/go-urn v1.1.0/go.mod h1:+cyI34gQWZcE1eQU7NVgKkkzdXDQHr1dBMtdAPozLkw=
+github.com/libp2p/go-netroute v0.2.0 h1:0FpsbsvuSnAhXFnCY0VLFbJOzaK0VnP0r1QT/o4nWRE=
+github.com/libp2p/go-netroute v0.2.0/go.mod h1:Vio7LTzZ+6hoT4CMZi5/6CpY3Snzh2vgZhWgxMNwlQI=
 github.com/lucor/goinfo v0.0.0-20210802170112-c078a2b0f08b/go.mod h1:PRq09yoB+Q2OJReAmwzKivcYyremnibWGbK7WfftHzc=
 github.com/lyft/protoc-gen-star v0.5.3/go.mod h1:V0xaHgaf5oCCqmcxYcWiDfTiKsZsRc87/1qhoTACD8w=
 github.com/magiconair/properties v1.8.5 h1:b6kJs+EmPFMYGkow9GiUyCyOvIwYetYJ3fSaWak/Gls=
@@ -464,8 +472,8 @@ github.com/munnerz/goautoneg v0.0.0-20120707110453-a547fc61f48d/go.mod h1:+n7T8m
 github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
 github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
 github.com/mxk/go-flowrate v0.0.0-20140419014527-cca7078d478f/go.mod h1:ZdcZmHo+o7JKHSa8/e818NopupXU1YMK5fe1lsApnBw=
-github.com/netbirdio/service v0.0.0-20220901161712-56a6ec08182e h1:T7x1EzbvEiuvRtfNxLmbw5z2cwdXuFx+plt2lzY3nPY=
+github.com/netbirdio/service v0.0.0-20220905002524-6ac14ad5ea84 h1:u8kpzR9ld1uAeH/BAXsS0SfcnhooLWeO7UgHSBVPD9I=
-github.com/netbirdio/service v0.0.0-20220901161712-56a6ec08182e/go.mod h1:CIMRFEJVL+0DS1a3Nx06NaMn4Dz63Ng6O7dl0qH0zVM=
+github.com/netbirdio/service v0.0.0-20220905002524-6ac14ad5ea84/go.mod h1:CIMRFEJVL+0DS1a3Nx06NaMn4Dz63Ng6O7dl0qH0zVM=
 github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646/go.mod h1:jpp1/29i3P1S/RLdc7JQKbRpFeM1dOBd8T9ki5s+AY8=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
 github.com/nxadm/tail v1.4.4/go.mod h1:kenIhsEOeOJmVchQTgglprH7qJGnHDVpk1VPCcaMI8A=
@@ -751,6 +759,7 @@ golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v
 golang.org/x/net v0.0.0-20210316092652-d523dce5a7f4/go.mod h1:RBQZq4jEuRlivfhVLdyRGr576XBO4/greRjx4P4O3yc=
 golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
 golang.org/x/net v0.0.0-20210410081132-afb366fc7cd1/go.mod h1:9tjilg8BloeKEkVJvy7fQ90B1CfIiPueXVOjqfkSzI8=
+golang.org/x/net v0.0.0-20210423184538-5f58ad60dda6/go.mod h1:OJAsFXCWl8Ukc7SiCT/9KSuxbyM7479/AVlXFRxuMCk=
 golang.org/x/net v0.0.0-20210428140749-89ef3d95e781/go.mod h1:OJAsFXCWl8Ukc7SiCT/9KSuxbyM7479/AVlXFRxuMCk=
 golang.org/x/net v0.0.0-20210503060351-7fd8e65b6420/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20210525063256-abc453219eb5/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
@@ -873,6 +882,7 @@ golang.org/x/sys v0.0.0-20210320140829-1e4c9ba3b0c4/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210426080607-c94f62235c83/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210514084401-e8d321eab015/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210525143221-35b2ab0089ea/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=

iface/configuration.go

@@ -9,6 +9,16 @@ import (
 	"time"
 )
 
+// GetName returns the interface name
+func (w *WGIface) GetName() string {
+	return w.Name
+}
+
+// GetAddress returns the interface address
+func (w *WGIface) GetAddress() WGAddress {
+	return w.Address
+}
+
 // configureDevice configures the wireguard device
 func (w *WGIface) configureDevice(config wgtypes.Config) error {
 	wg, err := wgctrl.New()
@@ -111,6 +121,114 @@ func (w *WGIface) UpdatePeer(peerKey string, allowedIps string, keepAlive time.D
 	return nil
 }
 
+// AddAllowedIP adds a prefix to the allowed IPs list of peer
+func (w *WGIface) AddAllowedIP(peerKey string, allowedIP string) error {
+	w.mu.Lock()
+	defer w.mu.Unlock()
+
+	log.Debugf("adding allowed IP to interface %s and peer %s: allowed IP %s ", w.Name, peerKey, allowedIP)
+
+	_, ipNet, err := net.ParseCIDR(allowedIP)
+	if err != nil {
+		return err
+	}
+
+	peerKeyParsed, err := wgtypes.ParseKey(peerKey)
+	if err != nil {
+		return err
+	}
+	peer := wgtypes.PeerConfig{
+		PublicKey:         peerKeyParsed,
+		UpdateOnly:        true,
+		ReplaceAllowedIPs: false,
+		AllowedIPs:        []net.IPNet{*ipNet},
+	}
+
+	config := wgtypes.Config{
+		Peers: []wgtypes.PeerConfig{peer},
+	}
+	err = w.configureDevice(config)
+	if err != nil {
+		return fmt.Errorf("received error \"%v\" while adding allowed Ip to peer on interface %s with settings: allowed ips %s", err, w.Name, allowedIP)
+	}
+	return nil
+}
+
+// RemoveAllowedIP removes a prefix from the allowed IPs list of peer
+func (w *WGIface) RemoveAllowedIP(peerKey string, allowedIP string) error {
+	w.mu.Lock()
+	defer w.mu.Unlock()
+
+	log.Debugf("removing allowed IP from interface %s and peer %s: allowed IP %s ", w.Name, peerKey, allowedIP)
+
+	_, ipNet, err := net.ParseCIDR(allowedIP)
+	if err != nil {
+		return err
+	}
+
+	peerKeyParsed, err := wgtypes.ParseKey(peerKey)
+	if err != nil {
+		return err
+	}
+
+	existingPeer, err := getPeer(w.Name, peerKey)
+	if err != nil {
+		return err
+	}
+
+	newAllowedIPs := existingPeer.AllowedIPs
+
+	for i, existingAllowedIP := range existingPeer.AllowedIPs {
+		if existingAllowedIP.String() == ipNet.String() {
+			newAllowedIPs = append(existingPeer.AllowedIPs[:i], existingPeer.AllowedIPs[i+1:]...)
+			break
+		}
+	}
+
+	if err != nil {
+		return err
+	}
+	peer := wgtypes.PeerConfig{
+		PublicKey:         peerKeyParsed,
+		UpdateOnly:        true,
+		ReplaceAllowedIPs: true,
+		AllowedIPs:        newAllowedIPs,
+	}
+
+	config := wgtypes.Config{
+		Peers: []wgtypes.PeerConfig{peer},
+	}
+	err = w.configureDevice(config)
+	if err != nil {
+		return fmt.Errorf("received error \"%v\" while removing allowed IP from peer on interface %s with settings: allowed ips %s", err, w.Name, allowedIP)
+	}
+	return nil
+}
+
+func getPeer(ifaceName, peerPubKey string) (wgtypes.Peer, error) {
+	wg, err := wgctrl.New()
+	if err != nil {
+		return wgtypes.Peer{}, err
+	}
+	defer func() {
+		err = wg.Close()
+		if err != nil {
+			log.Errorf("got error while closing wgctl: %v", err)
+		}
+	}()
+
+	wgDevice, err := wg.Device(ifaceName)
+	if err != nil {
+		return wgtypes.Peer{}, err
+	}
+	for _, peer := range wgDevice.Peers {
+		if peer.PublicKey.String() == peerPubKey {
+			return peer, nil
+		}
+	}
+	return wgtypes.Peer{}, fmt.Errorf("peer not found")
+}
+
 // RemovePeer removes a Wireguard Peer from the interface iface
 func (w *WGIface) RemovePeer(peerKey string) error {
 	w.mu.Lock()

iface/iface_test.go

@@ -229,7 +229,7 @@ func Test_UpdatePeer(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	peer, err := getPeer(ifaceName, peerPubKey, t)
+	peer, err := getPeer(ifaceName, peerPubKey)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -289,7 +289,7 @@ func Test_RemovePeer(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	_, err = getPeer(ifaceName, peerPubKey, t)
+	_, err = getPeer(ifaceName, peerPubKey)
 	if err.Error() != "peer not found" {
 		t.Fatal(err)
 	}
@@ -378,7 +378,7 @@ func Test_ConnectPeers(t *testing.T) {
 			t.Fatalf("waiting for peer handshake timeout after %s", timeout.String())
 		default:
 		}
-		peer, gpErr := getPeer(peer1ifaceName, peer2Key.PublicKey().String(), t)
+		peer, gpErr := getPeer(peer1ifaceName, peer2Key.PublicKey().String())
 		if gpErr != nil {
 			t.Fatal(gpErr)
 		}
@@ -389,28 +389,3 @@ func Test_ConnectPeers(t *testing.T) {
 	}
 
 }
-
-func getPeer(ifaceName, peerPubKey string, t *testing.T) (wgtypes.Peer, error) {
-	emptyPeer := wgtypes.Peer{}
-	wg, err := wgctrl.New()
-	if err != nil {
-		return emptyPeer, err
-	}
-	defer func() {
-		err = wg.Close()
-		if err != nil {
-			t.Error(err)
-		}
-	}()
-
-	wgDevice, err := wg.Device(ifaceName)
-	if err != nil {
-		return emptyPeer, err
-	}
-	for _, peer := range wgDevice.Peers {
-		if peer.PublicKey.String() == peerPubKey {
-			return peer, nil
-		}
-	}
-	return emptyPeer, fmt.Errorf("peer not found")
-}