How to Block MSN?
1) Block port
tcp port 6891-6900 – file send
tcp & udp port 1863
tcp & udp 6901 – voice
udp 5190
2) block url
gateway.messenger
gateway.dll
messenger.msn
rad.msn.com
msgr.dlservice.microsoft.com
3) block ip address of user login to server
207.46.96.0 / 255.255.240.0
64.4.13.160/255.255.255.224





