#!/bin/sh
#

net1=192.168.3.0
net2=192.168.1.0
gw1=192.168.2.100
gw2=192.168.2.103
hmask=255.255.255.255
nmask=255.255.255.0

depmod -a
modprobe ipsec

tncfg attach ipsec0 eth0
ifconfig ipsec0 $gw1

#
# Transport mode
#
#route del $gw2
#route add -net $gw2 dev ipsec0
#
#addrt $gw1 $hmask \
#	$gw2 $hmask \
#	$gw2 125
#
#setsa $gw1 135 esp 3des-md5-96 r \
#	1000000000000001 6630663066303133
#setsa $gw2 125 esp 3des-md5-96 i \
#	1000000000000001 6630663066303132

#
# Tunnel mode
#
route del $net2
route add -net $net2 dev ipsec0 gw $gw2

# forward path

addrt $net1 $nmask $net2 $nmask $gw2 103
echo sleeping after addrt
sleep 1

setsa $gw2 103 ip4 $gw1 $gw2
setsa $gw2 105 esp des-cbc 66306630 6630663066303132
setsa $gw2 106 ah md5 66306630663031326630663066303132

spigrp $gw2 103 $gw2 105 $gw2 106

# return path

setsa $gw1 115 esp des-cbc 66306630 6630663066303132
setsa $gw1 116 ah md5 66306630663031326630663066303132

cat /proc/net/ipsec-spi
echo
cat /proc/net/ipsec-route