shorewall-netmap 5 netmap Shorewall NETMAP definition file /etc/shorewall/netmap This file is used to map addresses in one network to corresponding addresses in a second network. To use this file, your kernel and iptables must have NETMAP support included. The columns in the file are as follows. TYPE - DNAT|SNAT Must be DNAT or SNAT. If DNAT, traffic entering INTERFACE and addressed to NET1 has its destination address rewritten to the corresponding address in NET2. If SNAT, traffic leaving INTERFACE with a source address in NET1 has it's source address rewritten to the corresponding address in NET2. NET1 - network-address Network in CIDR format (e.g., 192.168.1.0/24). INTERFACE - interface The name of a network interface. The interface must be defined in shorewall-interfaces(5). Shorewall allows loose matches to wildcard entries in shorewall-interfaces(5). For example, ppp0 in this file will match a shorewall-interfaces(8) entry that defines ppp+. NET2 - network-address Network in CIDR format NET3 (Optional) - network-address Added in Shorewall 4.4.11. If specified, qualifies INTERFACE. It specifies a SOURCE network for DNAT rules and a DESTINATON network for SNAT rules. /etc/shorewall/netmap http://shorewall.net/netmap.html shorewall(8), shorewall-accounting(5), shorewall-actions(5), shorewall-blacklist(5), shorewall-hosts(5), shorewall-interfaces(5), shorewall-maclist(5), shorewall-masq(5), shorewall-nat(5), shorewall-params(5), shorewall-policy(5), shorewall-providers(5), shorewall-proxyarp(5), shorewall-route_rules(5), shorewall-routestopped(5), shorewall-rules(5), shorewall.conf(5), shorewall-secmarks(5), shorewall-tcclasses(5), shorewall-tcdevices(5), shorewall-tcrules(5), shorewall-tos(5), shorewall-tunnels(5), shorewall-zones(5)