Re: Router with 2 public interfaces

["Thomas Bätzler" <t.baetzler@bringe.com>]

Flávio Costa wrote:
[...]
> When someone connect to webserver by interface eth1 I doesn't work,
> because packets go back by default route (eth2), which is not the same
> they arrive (eth1).

This is a late answer but maybe it's still helpful:

#!/bin/sh

ETH1_GW="xxx.xxx.xxx.xxx"
ETH1_IP="xxx.xxx.xxx.yyy"

iptables -t mangle -F

ip route flush table 4

ip route show table main | grep -Ev ^default | while read ROUTE ; do
   ip route add table 4 $ROUTE
done

ip route add table 4 default via $ETH1_GW

iptables -t mangle -A OUTPUT -s $ETH1_IP -j MARK --set-mark 4

ip rule add fwmark 4 table 4
ip route flush cache

HTH,
Thomas