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Date:      Thu, 05 Mar 2009 12:30:30 +0100
From:      Ivan Voras <ivoras@freebsd.org>
To:        freebsd-net@freebsd.org
Subject:   IPFW and IPv6 TCP timeout problem
Message-ID:  <good54$65u$1@ger.gmane.org>

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[-- Attachment #1 --]
Hi,

It appears that IPFW drops dynamic (state-keeping) rules for idle IPv6
TCP connections after a short (60 seconds by default) timeout. This of
course creates problems for services like SSH and NFS. I've contacted
Luigi Rizzo about it but he cannot help with the IPv6 part of the ipfw.
His guess is that the part that should send keepalive ACK packets like
ipfw does for IPv4 is broken or nonexistent for IPv6.

Any takers? Should I file a PR?


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