!!article is in testing mode - do not copyleft yet!!
References:
1. http://www.linuxhorizon.ro/iproute2.html
2. http://www.lartc.org/
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2 network cards:
* eth0 ( static on 192.168.0.0/24 lan )
* wlan0 ( dhcp on 10.10.10.0/24 lan )
I want tcp port 22 & tcp port 80 to be routed via wlan0
# ip rule
# ip route show table all
echo 1 WLAN >> /etc/iproute2/rt_tables
iptables -A PREROUTING -t mangle -i wlan0 -p tcp --dport 22 -j MARK --set-mark 1
iptables -A PREROUTING -t mangle -i wlan0 -p tcp --dport 80 -j MARK --set-mark 2
ip route add default via 10.10.10.1 dev wlan0 table WLAN
ip rule add from 10.10.10.0/24 table WLAN
ip rule add from all fwmark 1 table WLAN
ip rule add from all fwmark 2 table WLAN
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=== Show links ===
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$ ip l
$ ip a
$ ip link
$ ip link list
$ ip link show
$ ip addr
$ ip addr show
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=== Show routes ===
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$ ip r
$ ip route
$ ip route list
$ ip route show
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=== Flush routes ===
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ip route flush cache
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=== delete net ===
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ip link delete INTERFACE.VID
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