On Saturday 2005-October-01 13:03, Marek Zachara wrote: > I'm trying to get asterisk IAX protocol to be routed properly. This > is UDP packets destined for port 4569. I need them to be sent out > from the box at eth1 with source 192.168.100.1 (internal net at eth0 > is 10.0.0.0/24) > > the nat/postrouting table looks like this (i waited for about 10 snip > Any suggestions what i could be doing wrong? This is asterisk running on the iptables box itself? Try nat/OUTPUT. I won't guess. Post complete network topology information and your iptables-save output. Why do you want to NAT from one RFC 1918 address to another one? I bet there is a better way to do this. I don't have any trouble with IAX/IAX2 behind NAT. -- mail to this address is discarded unless "/dev/rob0" or "not-spam" is in Subject: header