Hajimu UMEMOTO 931282ced7 - call ip6_output() instead of nd6_output() when ipsec tunnel
mode is applied, since tunneled packets are considered to be
  generated packets from a tunnel encapsulating node.
- tunnel mode may not be applied if SA mode is ANY and policy
  does not say "tunnel it".  check if we have extra IPv6 header
  on the packet after ipsec6_output_tunnel() and call ip6_output()
  only if additional IPv6 header is added.
- free the copyed packet before returning.

Obtained from:	KAME
2004-02-19 14:57:22 +00:00
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