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* ip6_finish_output2 change broke netfilter xt_TEE target
@ 2013-09-17 19:54 Phil Oester
  0 siblings, 0 replies; only message in thread
From: Phil Oester @ 2013-09-17 19:54 UTC (permalink / raw)
  To: yoshfuji; +Cc: netdev, netfilter-devel

The change made in commit 6fd6ce20 (ipv6: Do not depend on rt->n in
ip6_finish_output2) broke the xt_TEE target for IPv6 packets.  Instead
of using the nexthop provided in the --gateway option, ip6_finish_output2
is now performing neighbor solicitation for the original daddr in the
copied skb.

Similar breakage occurred in IPv4, and was fixed (in 2ad5b9e4) by using
the flag FLOWI_FLAG_KNOWN_NH.  I can find no easy way to make use of that
flag here.  Reverting 6fd6ce20 makes TEE work again, but I am not clear
on what problem that commit was attempting to solve.  Yoshifuji?

Phil


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2013-09-17 19:54 ip6_finish_output2 change broke netfilter xt_TEE target Phil Oester

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