How do i forward traffic from 2 interfaces ??

phreak_coder · n00b Joined: 29 Aug 2003 Posts: 43

Ok i have 3 interfaces, 1 to the internet, 1 to my local LAN, and the other is my wireless network.
I can get either the wireless network connections working through NAT, or the LAN, but not both. i have been playing around with this for some time.
If someone could just post a few basic iptable rules that demonstrate forwarding traffic from 2 seperate interfaces, just so i know im on the right track.
many thanks.

splooge · l33t Joined: 30 Aug 2002 Posts: 636

should be fairly straight forward...

iptables -t nat -A POSTROUTING -o ethx -j MASQUERADE

where ethx = your interface connected to the 'net.

Make sure your other networks use your gentoo box as their default gateway and ensure you have ip_forwarding enabled in sysctl and that's about all you should need.
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