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HTTPS url blocking using class map

Seth Beauchamp
Level 1
Level 1

I have a request for blocking urls using a class map. I have made this work with HTTP, however it does not work for https. This is a 2851 router with IOS Version 12.4(15)T7. I see i could use the command "match protocol secure-https" however this does not let me specify any specific urls.

Does anyone know if a new IOS version will support what I'm trying to do? Or if there is another way? I wasn't sure if this was the correct forum to use, sorry if its not.

2 Replies 2

STUART RUSSELL
Level 1
Level 1

Hi Seth, I think you will find that because https traffic is really http encapsulated in ssl/tls the URL is not visible. My understanding is unless you use a technology to decrypt and then inspect the http you won't see the URL.

Sent from Cisco Technical Support iPad App

thats what I suspected. Thank you for your reply.

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