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How to Block Skype

Posted on 2006-10-25
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Last Modified: 2013-11-16
Is there a way to block Skype on a Cisco 501 Firewall.

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Question by:Firstair
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lrmoore earned 125 total points
ID: 17810773
Not really.. Heres a good analysis, if rather dated, of how Skype works
http://www1.cs.columbia.edu/~library/TR-repository/reports/reports-2004/cucs-039-04.pdf

Blocking it requires more intelligence than the PIX 501 has on its own. Cisco routers can use NBAR to block it.
http://ciscotips.wordpress.com/2006/06/07/how-to-block-skype/

Are you:
A) looking for a solution to block skype users
B) wondering if your firewall can be blocking your skype use?

Is this related to your previous question about the VPN client?
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Author Comment

by:Firstair
ID: 17811027

I had a feeling the 501 was able to.......

I am looking at it to block skype users and no not related to the VPN client.

Thanks
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