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Blocking messenger in Pix Firewall

Hello Everybody,

How can I blocked the messenger services like yahoo and msn in the pixfirewall and how can I know who is using this or not.Anybody have any idea.

Thanx for your answer in advance.

1 REPLY

Re: Blocking messenger in Pix Firewall

Hi .. You can easily restrict it if using version 7.X by using http inspection and defining a port-misuse command.

Please refer to the section about Instant messaging inspection on the admin guide for more details about the use of this command.

http://www.cisco.com/en/US/products/ps6120/products_configuration_guide_book09186a0080450278.html

The following is a briwf example

hostname(config)# http-map inbound_http

hostname(config-http-map)# port-misuse default action reset log

hostname(config-http-map)# port-misuse im drop

hostname(config-http-map)# exit

In this case, only the Instant Messenger application is denied. When HTTP traffic for the other

supported applications is received, the security appliance reset the connection and creates a syslog

entry

I hope it helps .. please rate if it does !!!

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