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Checkpoint FW1 NG equivalent command for Cisco PIX "fixup protocol rtsp 554"?

Posted on 2004-04-12
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Does the Checkpoint FW1 NG support inspection of RTSP traffic on port 554 to open RealAudio UDP ports like the Cisco PIX does?

If so, how is this configured?

Quoting from the Cisco documentation:

"The fixup rtsp command lets PIX Firewall pass RTSP (Real Time Streaming Protocol) packets. RTSP is used by RealAudio, RealNetworks, Apple QuickTime 4, RealPlayer, and Cisco IP/TV connections."
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Question by:nickswanjan
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by:Tim Holman
ID: 10816240
Yes.  CheckPoint offers full inpsection of RTSP.
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by:nickswanjan
ID: 10817745
Can you give me an idea of how to enable RTSP inspection?  I don't find it in the documentation.

I am looking for functionality similar to the described Cisco PIX function where the firewall inspects the RTSP and opens UDP ports based on the contents of the RTSP request from the inside client.  I don't want to statically leave a big range of ports open.
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Tim Holman earned 250 total points
ID: 10822094
A full list appears here:

http://www.checkpoint.com/products/protect/vpn-1_firewall-1_appsupport.html

To enable the sort of protection you require, all you would have to do would be to create a firewall rule with a RealAudio service object in it.  The stateful inspection and protocol awareness is included by default.

The PIX leaves this sort of thing out of the default configuration in order to decrease the size of the config file and keep performance to a maximum - so if you need it, you need to enable it.

That's why Check Point's configuration files are a hundred times the size of a standard PIX config file - absolutely everything is enabled to make configuration easier...  ;)
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