how to block teamviewer remote desktop

Unanswered Question
Jan 28th, 2009

Dear all,

how to block teamviewer remote desktop on cisco ASA5550.

prompt response is much appicate.

thanks & regards

I have this problem too.
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eddie.mitchell@... Thu, 01/29/2009 - 07:22

Since teamviewer seems to use outbound port 80 (http) for the communication channel, effectively blocking it will be somewhat complex. The best way I can think to accomplish this would be to define custom regex to match the identified traffic and then use a class-map to block it.

This Cisco article describes the process:

Hope this helps.

Jithesh K Joy Sun, 02/01/2009 - 21:13


Could you please try the following your ASA to block teamviewer .

http-map inbound_http

port-misuse p2p action drop log

port-misuse tunneling action drop log

class-map http-port

match port tcp eq www

policy-map inbound_policy

class http-port

inspect http inbound_http

service-policy inbound_policy interface inside

Hope this helps

zakid Mon, 02/02/2009 - 00:04

many thanks for all your efforts,

i will try and show the result, meanwhile, some other software similiar to teamview, like logmeon, securelogin, Timbuktu Pro, can also protect from the above statements.

thanks in advance,

Jithesh K Joy Tue, 02/03/2009 - 21:13


Could you block team viewer with that conf. Otherwise we can try some other way




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