1. You are using aliases, which IPTables does not use. Please use look into IPRoute2 on the net on how to setup proper IPRoute2 bindings. 2. Add an SNAT rule on the postrouting -o <internet_iface> pointing to 64.1.1.2 -----Original Message----- From: Rio Martin. [mailto:rio@xxxxxxxxx] Sent: Thursday, April 03, 2003 2:29 AM To: netfilter@xxxxxxxxxxxxxxxxxxx Subject: SNAT Dear folks, I need help to modify the source ip for every irc connection coming from my clients. Eg: eth0 = 64.1.1.1 eth0:1 = 64.1.1.2 eth0:2 = 192.168.1.1 My clients is in 192.168.1.0/24. Right now all connection to irc server is using ip 64.1.1.1 I want to modify, so all irc connection is using 64.1.1.2 Thanks for helping me ... Regards, Rio Martin.