Re: Multilink PPP for IPv6

Anupama Potluri writes:
> I am not sure if this has already been discussed. If so, I am sorry. I
> am wondering if there are any changes for multilink PPP RFC wrt IPv6 -
> specifically, in the endpoint discriminator field, I see that one of the
> classes can be an IPv4 address. So, I am wondering if this is going to
> be expanded to include an IPv6 address? Any other changes? Any proposals
> already out there? Any help or pointers to any previous discussion will
> be highly appreciated.

No, it hasn't been discussed, as best I can tell.

I don't think it's quite a necessary thing to do, though it might be
nice.  A device that speaks IP but has only IPv6 addresses (and *no*
IPv4 address at all) could use the 'deprecated' Class 1 (Locally
Assigned Address) address space and place the address there.

If a new IPv6 class were added to avoid the possibility of identifier
duplication, it'd need to specify (at least) that only global unicast
addresses (RFC 3513) could be used.  (The IPv4-compatible addresses
have the right uniqueness, but if you have a globally-unique IPv4
address that you could use to form such an IPv6 address, then you'd
already be able to use RFC 1990 Class 2 and you wouldn't need this new
feature.)

I'd suggest that if someone wants to update RFC 1990, it'd be helpful
to advance it to Standard status as well.

-- 
James Carlson, IP Systems Group                <james.d.carlson@xxxxxxx>
Sun Microsystems / 1 Network Drive         71.234W   Vox +1 781 442 2084
MS UBUR02-212 / Burlington MA 01803-2757   42.497N   Fax +1 781 442 1677

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