Ive read elsewhere in these forums that it is possible to use the NBAR features in IOS to block/manage Skype traffic. Im particularly interested in whether or not this will permit skype voice but be able to block skype video.
I have a 1811 router with the following output from a show version:
"Skype Classification via NBAR Packet Description Language Modules Skype is a popular VoIP telephony service that allows users to speak, send instant messages, and/or send files to one another via the Internet. This functionality provides the ability to recognize Skype application traffic in Cisco IOS Software. The NBAR PDLM for Skype classification is
integrated into Cisco IOS Software. There will not be a downloadable PDLM for Skype because of infrastructure changes required to accommodate Skype application classification."
But what you are telling me is that there is a way. I am interested to hear more. I also submitted a request to TAC on this same issue. Their response was that yes the skype pdlm is not available separately from IOS but that it is embedded in NBAR in IOS release 12.4(4).
They also told me that the only router supported in the 1800 series is the 1841. Thats a bummer for me, since I have the 1811.
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This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
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