Alexandru Petrescu wrote:
Templin, Fred L wrote:
I was referring to multicast RAs for purposes of SLAAC. If you did
stateful address configuration and used RAs only to advertise default
router, that is different.
Its not only about stateful address configuration; unsolicited
RAs with incomplete information can be followed by an RS/RA
exchange where the RA contains prefixes for SLAAC.
I kind of see how this would work. A quirk may be with RS being sent to
multicast only, by 2461:
Destination Address
Typically the all-routers multicast address.
Point-to-point links are usually non multicast capable.
That seems backwards.
Point to point links are by definition IP multicast capable.
When sending a packet on a point to point link, whether the final
destination is unicast or multicast, the same thing happens - the packet
is sent to the other end of the link.
RFC 2461
point-to-point - a link that connects exactly two interfaces. A
point-to-point link is assumed to have multicast
capability and have a link-local address.
Erik
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