From: Kamran Habib (khabib@employees.org)
Date: Wed Jul 23 2008 - 15:55:28 ART
http://www.bluecoat.com/solutions/enterprise/controlsecurity/imskypecontrol
BlueCoat claims they can.....they have a pdf doc available on their
website on how they do it (you'll need to register to see the doc):
http://www.bluecoat.com/resources/whitepapers
-Kamran
>
>
> Joseph Brunner wrote:
>> Cisco and the other pdlm/nbar protocol sniffers of the network world are
>> always one or two steps behind skype...
>>
>> Remember that game when we were grade school age - "Where in the
>> world is
>> Carmen Sandiego"?
>>
>> We'll remember we could never catch her, she was always just "leaving
>> town"
>> That's skype.
>>
>> Verso boxes can sometimes block it... I hear they use those in
>> dictatorships
>> like Dubai to block all internet based telephony so you have to his
>> majesty's telephone network, etc.
>>
>> Checkpoint boxes can sometimes block it too, but I have seen skype work
>> through them lately.
>>
>> I think bluecoat can block them occasionally too...
>>
>> -Joe
>>
>> -----Original Message-----
>> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
>> Radioactive Frog
>> Sent: Wednesday, July 23, 2008 2:14 AM
>> To: Cisco certification
>> Subject: match protocol skype doesn't work
>>
>> Strange, blocking skype using nbar doesn't work.
>>
>> class-map match-any BlockSkype
>> match protocol skype
>>
>> policy-map BlockSkype
>> class BlockSkype
>> drop
>>
>> int fas0/0
>> desc ## connected to local lan###
>> service-policy input BlockSkype
>>
>> i've checked the Skype client setting - tried unticking the option
>> wher eit
>> says put skype traffic to http port 80. but still doesn't work.
>>
>> when i open the skye client which is connected to fas0/0 , it still
>> works!
>> lol
>>
>> any idea?
>>
>>
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>>
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