From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alejandro Flores Subject: Re: How can I configure my firewall to access voice chat with MSN messenger 6.2? Date: Wed, 04 Aug 2004 12:51:04 -0300 Sender: netfilter-admin@lists.netfilter.org Message-ID: <1091634664.14988.6.camel@aflores> References: <006c01c47a35$02e03540$0201a8c0@MagicwindLaptop> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <006c01c47a35$02e03540$0201a8c0@MagicwindLaptop> Errors-To: netfilter-admin@lists.netfilter.org List-Help: List-Post: List-Subscribe: , List-Id: List-Unsubscribe: , List-Archive: Content-Type: text/plain; charset="us-ascii" To: MagicWind Cc: netfilter@lists.netfilter.org 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? >