From b3b2b9e192d5811f91f9cd92aeec489cecabc92e Mon Sep 17 00:00:00 2001
From: Steffen Klassert <steffen.klassert@secunet.com>
Date: Tue, 10 Sep 2013 13:43:09 +0200
Subject: [PATCH] ipsec: Don't update the pmtu on ICMPV6_DEST_UNREACH

Currently we update the pmtu in the IPsec protocol error handlers
if icmpv6 message type is either ICMPV6_DEST_UNREACH or
ICMPV6_PKT_TOOBIG. Updating the pmtu on ICMPV6_DEST_UNREACH
is wrong in any case, it causes strangely fragmented packets.
Only ICMPV6_PKT_TOOBIG signalizes pmtu discovery, so remove the
ICMPV6_DEST_UNREACH check in the IPsec protocol error handlers.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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