Careful on the 65.52.0.0 - 65.55.255.255. Rob is correct on the block however MS 
office update (if you use) is at 65.54.206.30 and 65.54.206.58

Mike.


-----Original Message-----
From: Rutherford, Robert
[mailto:[EMAIL PROTECTED]
Sent: Tuesday, May 11, 2004 10:38 AM
To: [EMAIL PROTECTED]
Subject: Re: [FW-1] how to block MSN messenger with R54 or R55


The MSN under R54 should work... Unless it's a brand new client with
differing ports?

All versions seem to use different IP ranges but blocking access to
these IP's should work.

Allow: 65.54.244.42  - Hotmail (if u like)
Block: 65.52.0.0 - 65.55.255.255
Block: 207.68.0.0 / 255.255.0.0
Block: 207.46.0.0 / 255.255.0.0


BR

Rob

-----Original Message-----
From: theG man [mailto:[EMAIL PROTECTED]
Sent: 11 May 2004 15:09
To: [EMAIL PROTECTED]
Subject: [FW-1] how to block MSN messenger with R54 or R55


Hi everyone,
I know R54 and R55, has a group for Messenger services, like AOL, Yahoo,
and MSN, after creating the rule and pushing policy, YAHOO and AOL not
working but MSN still working, any idea? does anyone knows what servers
(IP addresses) MSN messenger uses, so I can block them by IP addresses.
FYI_Checkpoint knowledgebase IP addresses for MSN is not updated and is
old.
  what would be the command for nslookup to get the server IP addresses
for MSN messenger? thanks





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