Re: How can I configure my firewall to access voice chat with MSN messenger 6.2?

[Alejandro Flores <alejandro.flores@triforsec.com.br>]

	Hello there,

	Voice/video on MSN doesn't work behind firewall/nat. The negotiation of
the void/video connection is done in the payload of the packet.
	Take a look at linux-igd:
	http://linux-igd.sourceforge.net/
	It's working for me.

Regards,
Alejandro Flores

> I have a linux server which is configured as a router connecting my
> internal network and the internet.  using the following iptables
> rules:
>  
> iptables -A FORWARD -i eth0 -o eth1 -m state --state
> ESTABLISHED,RELATED -j ACCEPT
> iptables -A FORWARD -i eth1 -o eth0 -j ACCEPT
> iptables -A FORWARD -j LOG
> iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
>  
> where eth0 is the netword adapter linking to the internet and the eth1
> is the adapter linking to the internal network.
> It seems the network works quite well, except for the voice connection
> of MSN messenger 6.2.  I can't either initial a voice chat or accept a
> voice chat.
>  
> I've got absolutely no idea how to make it work.  Any ideas?
>