Blocking MSN

The following sites, ports, target IPs and IP ranges can be blocked:

• MSN messenger.hotmail.com
• Default Port: 1863
• specific target IP(s): 207.46.104.20
• range of IPs owned : 207.46.0.0 - 207.46.255.255

• mail.hotmail.com
• Default Port: 1863
• specific target IP(s): 65.54.254.129, 65.54.166.99
• range of IPs owned: 65.52.0.0 - 65.55.255.255 (65.52.0.0/255.255.0.0 and 64.4.13.0/255.255.255.0)

• nexus.passport.com
• Default Port: 443
• range of IPs owned: 65.52.0.0 - 65.55.255.255

• login.passport.com
• Default Port: 443
• range of IPs owned: 65.54.183.198, 65.54.179.198

• loginnet.passport.com
• Default Port: 443
• range of IPs owned: 65.54.179.192, 65.54.183.192

The following can also be blocked for MSN and Yahoo sites:

• rad.msn.com
• webmessenger.msn.com
• e-messenger.net
• msg.edit.yahoo.com
• messenger.yahoo.com