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New Member

IOS Skype Classification

Hello

Cisco realsed new feature on 12.4(4) IOS, it claims that the router can classify the Skype traffic by using the NBAR with Skype classification feature. I checked it but it seems that the router can classify the traffic as well as you permit it, but when I droped it with the drop command it seems that IOS can no loger catch Skype. Any comment?

Thanks

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New Member

Re: IOS Skype Classification

I have read that if Skype can't get though one way it morphs and resorts to other ports. That means the only way to reliably catch that traffic may be something with deep packet inspection like a third party traffic shapper or know enough about this undocumented protocol to know what it is going to do. NetworkWorld, Dec. 9, Volume 15, No. 20, headlines: "Skype poses risks".

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