Great Circle Associates Firewalls
(January 1998)
 

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Subject: Stateful Inspection Anyone?
From: MacGyver <macgyver @ tos . net>
Date: Tue, 06 Jan 1998 10:54:53 -0600
To: Firewalls Mailing List <firewalls @ greatcircle . com>

Hi folks,

I've been wondering this for a while, but just haven't gotten around to
asking anyone yet:

Checkpoint's Firewall-1 has a feature known as "stateful inspection" which
they tout as the end-all and be-all of packet-filtering and inspection.
Anyone had any experience in using this feature or have any thoughts
regarding stateful inspection?  How large of a performance impact is there
when stateful inspection is enabled?  Are the gains worth the added load?

Hope this spurs some interesting discussion.


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        ^               Habeeb J. Dihu
     -'   `-            Managing Senior Technologist
   " '     ` "          Cirrus Technologies
 "  '       `  "        
"  '      .  `  "                  
"  '    .' ` `  "       'I don't believe in the no-win scenario'
 " `   '    `' "           -- Captain James T. Kirk,  Star Trek II: TWK
   `  ' _  _ '          'There is an old Vulcan proverb, `Only Nixon
    '                    could go to China.`'
                           -- Captain Spock, Star Trek VI: TUC
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~



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