Hi,
I would like to be able to block file transfer with MSN Messenger on a Firewall (PIX 6.3.5 and 7.0.4) I have found those ports: TCP 6891 to 6901
Is there a way to disallow the transfers? I have learn that transfer and not done directly, it can pass by an MSN servers.
There must be a way to block this kind of traffic.
Do somebody know?
Thank you for your help
You can either use the layer 4-7 inspection engine (check the PIX docs or Google) or you can block the ports MSN uses which are:
tcp ports 6891-6900
However I think new versions of MSN will default to port 80 so blocking the ports may not be enough but test it out with the latest version of MSN anyways and see where that gets you.
Good luck.
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