I have an ubuntu machine that connected to 2 networks.
192.168.1.0/24 and 192.168.2.0/24
My machine has two IP addresses -- 192.168.1.50 and 192.168.2.50
I have SIP server on 192.168.2.250 but Wireless are on 192.168.1.xxx network. So, I'm try to make the tunnel on my machine, so, my SIP client on my phone can connect to SIP server on difference network. I have try port forwarding #5060 as other similar thread here but it not work. are there anyway I can do that with iptables?