Wednesday, January 5, 2011

Blocking skype with Cisco's NBAR has an old post on how to block skype on a Cisco Router. IOS 12.4(4)T and later include a classification for skype, so you can filter and block it using Cisco's Network Based Application Recognition (aka "NBAR")

The Cisco whitepaper on IOS Flexible Packet Matching and this thread in the Cisco support forums are both likely to be helpful.

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Regis has worked as a network engineer since 1994 for small companies and for large companies.