req: ipchains help

[cbis]

I have 2 ethernet cards in a linux box and want to set it up as a router. I know how to filter incoming and/or outgoing packets, but how do I get the incoming packets to go out the outgoing interface?

Thanks for any help

 

[n0cmonkey]

ip forwarding + masq. Look at linuxdoc.org and linuxnewbie.org for how-to's. Plus try and upgrade to 2.4.x kernel and iptables. Much better

 

[gaidin123]

Agreed. Upgrade to the 2.4.x (2.4.10 as of today) series of kernels and get yourself the newest version of iptables. It replaced ipchains with the 2.4.x series of kernels.

Check out http://ipmasq.cjb.net for the official IP Masquerading HOWTO. Download it onto one of your machines (they have it in a ton of formats) so that you can refer back to it while offline/configuring. They provide a few examples on rulesets (both ipchains and iptables) too.

Gaidin