[nsp] blocking Msn messenger on PIX

Paul Stewart pauls at nexicom.net
Tue Jul 13 09:36:53 EDT 2004


Unfortunately doesn't work unless you block port 80 as well and you probably
don't want to do that...  MSN messenger will default to TCP/80 when it can't
reach 1863.  What I ended up doing at a few sites that had their own
internal DNS was creating entries for messenger.msn.com (double check that -
it may have changed) to point to 127.0.0.1 therefore it couldn't login at
all.... Worked like a dream....

Paul


-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Richard Danielli
Sent: Tuesday, July 13, 2004 8:15 AM
To: Muhammad Talha
Cc: Cisco NSP
Subject: Re: [nsp] blocking Msn messenger on PIX


Try blocking outgoing TCP/1863 and UDP/7001


On Tue, 2004-07-13 at 07:50, Muhammad Talha wrote:
> Dear all
> 
> how can i block msn messenger on PIX firewall
> 
> Regards
> 
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net 
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-- 
Richard Danielli
President - eSubnet

http://www.eSubnet.com


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