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New Member

MSN Voice Chat through Cisco PIX

I have a cisco PIX 501 ver. 6.3

The MSN voice Chat is not working from a PC behind the PIX ( inside interface )

Can anyone help me to solve this problem ?


Kind Regards

Mohamed Abdallah

  • Other Security Subjects
Cisco Employee

Re: MSN Voice Chat through Cisco PIX

What version of 6.3 is this? If it's 6.3(1) then there is a known bug with MSN Messenger not working through the PIX (CSCeb45344, not visible from outside as it was found in pre-production testing). The fix is available in 6.3(2), but this code is not available due to another sever bug. You can open a TAC case and get the latest interim release of 6.3(2) made available to you for testing if you like.

If you're running 6.3(2) code already, then we need some more information to resolve this. Can you turn on logging on the PIX, try a connection and then send us the syslog output (see for details).

New Member

Re: MSN Voice Chat through Cisco PIX

PIX 501 version 6.2(2)

Please note that :

MSN messenger text chat is working

The voice chat of MSN is not working

Should I upgrade to ver. 6.3(2) ?


New Member

Re: MSN Voice Chat through Cisco PIX

If PIX 6.3 release is able to run MSN Voice with NAT (?) that means it is translating the SIP Headers. Is this functionality available in any IOS version ?

Regards \\ Naman

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