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Re: kern/40605 (forwarded IPv6 TCP packets get mangled by gif0 interface)
The following reply was made to PR kern/40605; it has been noted by GNATS.
From: Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>
Cc: tsutsui%NetBSD.org@localhost, gnats-admin%NetBSD.org@localhost,
Subject: Re: kern/40605 (forwarded IPv6 TCP packets get mangled by gif0
Date: Sun, 15 Nov 2009 05:12:41 +0900
> Synopsis: forwarded IPv6 TCP packets get mangled by gif0 interface
Just FYI, but the following gif fix might also affect this PR.
>> Clear cksum flags before any further processing like ip_forward does.
>> Many drivers set the UDP/TCP v4 flags even for v6 traffic and if the
>> packet is encapsulated with gif, the IPv6 header would get corrupted by
>> ip_output. Patch suggested by bad@
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