Based on RFC3810 6.2, we also need to check the hop limit and router alert
option besides source address.
Signed-off-by: NHangbin Liu <liuhangbin@gmail.com>
Acked-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Acked-by: NHannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>