Код:

auto lo 
iface lo inet loopback  
#eth0 
auto eth0
iface eth0 inet static 
address 192.168.6.9 
netmask 255.255.255.0 
gateway 192.168.6.1 
metric 5  
#eth1
auto eth1
iface eth1 inet static 
address 10.20.0.234 
netmask 255.255.0.0 
gateway 10.20.0.1 
metric 10

Код:

#!/bin/sh  
ip route flush table dc 
ip route add 109.X.X.X/32 via 10.20.0.1 dev eth1 table dc 
ip rule add fwmark 1 table dc 
iptables -t mangle -A PREROUTING -d 109.X.X.X/32 -p tcp --dport 4111 -j MARK --set-mark 1 
iptables -t mangle -A PREROUTING -d 109.X.X.X/32 -p udp --dport 4111 -j MARK --set-mark 1

Код:

#
# reserved values
#
110	static
109	dc
255	local
254	main
253	default
0	unspec
#
# local
#
#1	inr.ruhep