User guide

SmartDefense Categories
500 Check Point Safe@Office User Guide
Instant Messaging Traffic
SmartDefense can block instant messaging applications that use VoIP protocols, by
identifying the messaging application's fingerprints and HTTP headers.
This category includes the following nodes:
• ICQ
• MSN Messenger
• Skype
• Yahoo
Note: SmartDefense can detect instant messaging traffic regardless of the TCP port
being used to initiate the session.
Note: Skype versions up to 2.0.0.103 are supported.
In each node, you can configure how instant messaging connections of the selected type
should be handled, using the following table.