[openib-general] IPv6 All Router Multicast Group

[Roland Dreier]

    Hal> My question was a little unclear; I meant: Why does the
    Hal> kernel not request a full join in the case of the all routers
    Hal> and IGMP groups ?  What is the differentiator for this ?

Not sure exactly but I would guess only routers (or nodes running
routing protocols) would join these groups (as opposed to groups that
all nodes have to join).  On the other hand I'm not sure who is
sending packets to these groups either...

 - R.