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Date:      Sat, 29 Dec 2007 02:08:08 +0000 (UTC)
From:      "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
To:        freebsd-net@FreeBSD.org
Subject:   [patch] ICMP unreach, frag needed but df set + ro mtu broken
Message-ID:  <20071229020307.P81630@maildrop.int.zabbadoz.net>

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Hi,

while looking at an entirely different problems I found that icmp
unreach, frag needed but df set does not take into account any route
mtu in ip_forward breaking pmtu.

I put a patch here:
http://sources.zabbadoz.net/freebsd/patchset/patch-20071228-02-ip-forward-unreach-needfrag-ro.diff

Testing and review welcome.


PS: After a quick glance I think ip_fastfwd should be ok.

-- 
Bjoern A. Zeeb                                 bzeeb at Zabbadoz dot NeT
Software is harder than hardware  so better get it right the first time.



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