[GnomeMeeting-list] Two firewalls

[Gunther Cronenberg <gunther cronenberg cc>]

Hi!

Having Gnomemeeting 1.2 on a Gentoo system with two firewalls, I am
facing problems. I can only send a signal, not hearing anything. My
public IP starts like 130.*.*.* and there is a fw I don't have access
to. My hardware router then has a private IP like 10.*.*.* and I
configured it to forward all the ports to my laptops ip 192.*.*.*
Gnomemeeting detects a port-restricted fw and suggests using a
stun-server. I can receive a call, but then I cant hear the other
person. 
Is it correct if gnomemeeting knows the 130... address as public ip
address and what settings do I need?

Here is the list of ports I forwarded on the second firewall:
1720,  30000-30010,5000-5016,5020-5023
I cant configure TCP/UDP so I guess they are both.

A friend is also (but only) sitting behind the first fw and it works
fine for him

Thanks in advance
Gunther Cronenberg