From: Sascha Hlusiak <redacted>
Date: Sat, 22 Aug 2009 12:47:52 +0200

This patch makes try_6to4 use the address of the Next-Hop instead, respecting
the routing table. Users are encouraged to have a route 2002::/16 to the
tunnel device anyway, making all other 6to4 hosts direct neighbours.

This doesn't seem right to me at all, but I'm not a complete expert
in this area.

Can someone who is review this patch?  Thanks.