Hi all, I am trying to get iptables to work for me... I am running asterisk (11.23.0) on a C5 machine. Working fine on port 5060 udp. I have need to tcpenable=yes SIP and run that on port 5068. Since port 5060 is already running I was going to redirect 5068 to 5060. So I thought I could use iptables to do that - but does not seem to be working. 192.168.10.201 is my machine, 192.168.1.3 is the other machine. 1.3 should connect to 10.201 on port 5068. so I did: iptables -t nat -A PREROUTING -p tcp -d 192.168.10.201 --dport 5068 -j REDIRECT --to-port 5060 iptables -t nat -A POSTROUTING -p tcp -d 192.168.1.3 --dport 5060 -j REDIRECT --to-port 5068 This did not seem to work. iptable -t nat -L -n -v shows packets going out to 1.3 but "0" on the input for 5068. So then I added iptables -t nat -A OUTPUT -p tcp -d 192.168.10.201 --dport 5068 -j REDIRECT --to-port 5060 iptables -t nat -A OUTPUT -p tcp -d 127.0.0.1 --dport 5068 -j REDIRECT --to-port 5060 And still nothing on the input. What have I missed ? Thanks, Jerry