[openib-general] IPv6oIB neighbour discover broken when MCGs overflow

[Roland Dreier]

 > Two MCGs groups must be establised before IPoIB link up, one is broadcast
 > for IPv4, one is all hosts multicast for IPv6. So Node A is a member of all
 > hosts address, the patch directs ND sends to all hosts, so node A responses
 > it.

I'm still confused.  How do you interoperate with other RFC-compliant
nodes (they might not have your patch or might not even be running
Linux) that send ND messages to the solicited node group?  If node A
has your patch and doesn't try to join its own solicited node group,
then another node that doesn't know to send ND messages to the all
nodes group will not be able to find it.

 - R.