forked from extern/shorewall_code
01c45b8897
git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@9487 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
167 lines
3.6 KiB
Bash
Executable File
167 lines
3.6 KiB
Bash
Executable File
#!/bin/sh
|
|
|
|
RCDLINKS="2,S45 3,S45 6,K45"
|
|
################################################################################
|
|
# Script to create a gre or ipip tunnel -- Shorewall 4
|
|
#
|
|
# Modified - Steve Cowles 5/9/2000
|
|
# Incorporated init {start|stop} syntax and iproute2 usage
|
|
#
|
|
# This program is under GPL [http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt]
|
|
#
|
|
# (c) 2000,2001,2002,2003,2004,2005 - Tom Eastep (teastep@shorewall.net)
|
|
#
|
|
# Modify the following variables to match your configuration
|
|
#
|
|
# chkconfig: 2345 26 89
|
|
# description: GRE/IP Tunnel
|
|
#
|
|
################################################################################
|
|
|
|
#
|
|
# Type of tunnel (gre or ipip)
|
|
#
|
|
|
|
tunnel_type=gre
|
|
|
|
# Name of the tunnel
|
|
#
|
|
|
|
tunnel="dfwbos"
|
|
#
|
|
# Address of your External Interface (only required for gre tunnels)
|
|
#
|
|
myrealip="x.x.x.x"
|
|
|
|
# Address of the local system -- this is the address of one of your
|
|
# local interfaces (or for a mobile host, the address that this system has
|
|
# when attached to the local network).
|
|
#
|
|
|
|
myip="192.168.1.254"
|
|
|
|
# Address of the Remote system -- this is the address of one of the
|
|
# remote system's local interfaces (or if the remote system is a mobile host,
|
|
# the address that it uses when attached to the local network).
|
|
|
|
hisip="192.168.9.1"
|
|
|
|
# Internet address of the Remote system
|
|
#
|
|
|
|
gateway="x.x.x.x"
|
|
|
|
# Remote sub-network -- if the remote system is a gateway for a
|
|
# private subnetwork that you wish to
|
|
# access, enter it here. If the remote
|
|
# system is a stand-alone/mobile host, leave this
|
|
# empty
|
|
|
|
subnet="192.168.9.0/24"
|
|
|
|
# GRE Key -- set this to a number or to a dotted quad if you want
|
|
# a keyed GRE tunnel. You must specify a KEY if you
|
|
# intend to load ip_conntrack_proto_gre on either
|
|
# gateway system
|
|
|
|
key=
|
|
|
|
PATH=$PATH:/sbin:/usr/sbin:/usr/local/sbin
|
|
|
|
load_modules () {
|
|
case $tunnel_type in
|
|
ipip)
|
|
echo "Loading IP-ENCAP Module"
|
|
modprobe ipip
|
|
;;
|
|
gre)
|
|
echo "Loading GRE Module"
|
|
modprobe ip_gre
|
|
;;
|
|
esac
|
|
}
|
|
|
|
do_stop() {
|
|
|
|
if [ -n "`ip link show $tunnel 2>/dev/null`" ]; then
|
|
echo "Stopping $tunnel"
|
|
ip link set dev $tunnel down
|
|
fi
|
|
|
|
if [ -n "`ip addr show $tunnel 2>/dev/null`" ]; then
|
|
echo "Deleting $tunnel"
|
|
ip tunnel del $tunnel
|
|
fi
|
|
}
|
|
|
|
do_start() {
|
|
|
|
#NOTE: Comment out the next line if you have built gre/ipip into your kernel
|
|
|
|
load_modules
|
|
|
|
if [ -n "`ip link show $tunnel 2>/dev/null`" ]; then
|
|
do_stop
|
|
fi
|
|
|
|
echo "Adding $tunnel"
|
|
|
|
case $tunnel_type in
|
|
gre)
|
|
ip tunnel add $tunnel mode gre remote $gateway local $myrealip ttl 255 ${key:+key $key}
|
|
;;
|
|
*)
|
|
ip tunnel add $tunnel mode ipip remote $gateway
|
|
;;
|
|
esac
|
|
|
|
echo "Starting $tunnel"
|
|
|
|
|
|
ip link set dev $tunnel up
|
|
|
|
case $tunnel_type in
|
|
gre)
|
|
ip addr add $myip dev $tunnel
|
|
;;
|
|
*)
|
|
ip addr add $myip peer $hisip dev $tunnel
|
|
;;
|
|
esac
|
|
|
|
#
|
|
# As with all interfaces, the 2.4 kernels will add the obvious host
|
|
# route for this point-to-point interface
|
|
#
|
|
|
|
if [ -n "$subnet" ]; then
|
|
echo "Adding Routes"
|
|
case $tunnel_type in
|
|
gre)
|
|
ip route add $subnet dev $tunnel
|
|
;;
|
|
ipip)
|
|
ip route add $subnet via $gateway dev $tunnel onlink
|
|
;;
|
|
esac
|
|
fi
|
|
}
|
|
|
|
case "$1" in
|
|
start)
|
|
do_start
|
|
;;
|
|
stop)
|
|
do_stop
|
|
;;
|
|
restart)
|
|
do_stop
|
|
sleep 1
|
|
do_start
|
|
;;
|
|
*)
|
|
echo "Usage: $0 {start|stop|restart}"
|
|
exit 1
|
|
esac
|
|
exit 0
|