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Date:      Tue, 24 Aug 2021 16:44:57 -0500
From:      Tim Daneliuk <tundra@tundraware.com>
To:        FreeBSD Mailing List <freebsd-questions@freebsd.org>
Subject:   ipfw Table Organization
Message-ID:  <9e6cd8e2-a06e-468b-7245-d5ff13309763@tundraware.com>

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Is there any particular advantage - performance or otherwise - to breaking up
a large ipfw table into smaller tables?

We have a few firewalls approaching 100,000 rules for blocking addresses
and CIDR blocks.  The IPS are read from separate text files in a loop
in the firewall init code, but are all written to a single table.  This
is easy to maintain, but the concern is that we may be clobbering runtime
performance.

Thanks...



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