From: Brendan McGrath <red...@redmandi.dyndns.org> Date: Wed, 13 Dec 2017 22:14:57 +1100
> One example of when an ICMPv6 packet is required to be looped back is > when a host acts as both a Multicast Listener and a Multicast Router. > > A Multicast Router will listen on address ff02::16 for MLDv2 messages. > > Currently, MLDv2 messages originating from a Multicast Listener running > on the same host as the Multicast Router are not being delivered to the > Multicast Router. This is due to dst.input being assigned the default > value of dst_discard. > > This results in the packet being looped back but discarded before being > delivered to the Multicast Router. > > This patch sets dst.input to ip6_input to ensure a looped back packet > is delivered to the Multicast Router. > > Signed-off-by: Brendan McGrath <red...@redmandi.dyndns.org> Ok, after a lot of consideration this seems like a reasonable way to solve this problem. Applied, thank you.
