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Network Security Firewalls
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Re: PIX limitations

Subject: Re: PIX limitations
Date: Thu, 12 Aug 2004 00:00:46 -0400
J,

You need to check these details against the PIX OS manual for the version of code you are using. FWSM was based on PIX OS v6.0 and details like these may have diverged between the FWSM and the PIX appliance OS versions.

Liberty for All,

Brian

At 06:18 PM 8/6/2004 +0000, jlebowitsch@pacbell.net wrote:


Hi all,

The manual for Cisco's new FWSM says

"State information for multimedia sessions that require inspection are not passed over the state link for stateful failover.

For fragmented IP packets, only the first fragment is inspected.

For segmented TCP packets, if messages are divided between segments, the FWSM cannot inspect the packets."

Does anyone knows if this is true also of Cisco PIX? As FWSM is based on PIX it seems likely, but i can't find documentation for this.


Brian Ford
Consulting Engineer, Security & Integrity Specialist
Office of Strategic Technology Planning
Cisco Systems Inc.
http://www.cisco.com/go/safe/

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