No, don’t post the ethereal output just yet.
Looking at your router setup, i’m not sure it’s port redirection that you want to be using. What you need to be doing is NAT (or NAPT, rather than NAT, if there’s a choice). However, it’s hard to work out because i can’t see your router’s NAT config screen!
A suggestion. Disable port forwarding, disable filtering, enable NA§T and configure that with the ports you’ve got configured in the port forwarding at the moment - if that’s the way the config works…
Your port list is pretty similar to what mine was when i was doing that at my router - i’m not any more because it was a pain in the arse. Here’s my list:
ID Public Port - Start Public Port - End Private Port Port Type Host IP Address
1 5060 5060 5060 UDP 192.168.0.3
2 5004 5004 5004 UDP 192.168.0.3
3 10000 10000 10000 UDP 192.168.0.3
4 3478 3478 3478 UDP 192.168.0.3
5 4569 4569 4569 TCP 192.168.0.3
6 8000 8012 8000 UDP 192.168.0.3
Thinking about it, it is worth mentioning the way i’m doing it now, as it’s so much easier and works so much better.
I’m using my modem/router in bridging mode - i.e., not doing the PPPoE side of it, just the ATM. I’ve got a single cable between the router and a dedicated ethernet port on my gateway/asterisk server and running PPPoE on the gateway machine - along with a firewall. That way, the ppp interface on that machine is always a non-NAT’ed connection to the internet, with an internet-routable IP address and i don’t have to mess around with that NAT nonsense. It works so much better and is easier as i don’t have to keep track of the external IP address (“externip” in sip.conf).
Your internet connection may be PPPoATM, rather than PPPoE (if you’re in the UK, for example) and i’m not quite sure what you use to do the same thing if it is - but it shouldn’t be any harder. It’s definitely worth investigating if you’re running asterisk on ADSL. It does mean that if you’ve got other computers using the ADSL connection, you need a second ethernet card in your asterisk box and a separate ethernet switch, but it’s worth it to get rid of the headache!