Re: Neighbor Discovery and PPP links

2007-07-17 Thread JINMEI Tatuya / 神明達哉
At Tue, 17 Jul 2007 16:35:33 -0400, James Carlson <[EMAIL PROTECTED]> wrote: > Generating NS and processing NA drives the state machine associated > with neighbor cache entries. > > > other ND functions, of course they should be supported. > > I don't see how you get there at all. You need to b

Re: Neighbor Discovery and PPP links

2007-07-17 Thread Ole Troan
>> > I don't know of any cases where omitting ND for IPv6 addresses makes >> > much sense. >> >> OK, so at least we've clarified that we're in disagreement. I don't see >> support in the specs for doing address resolution on links without >> link-layer addresses. what would the purpose be in doing

Re: Neighbor Discovery and PPP links

2007-07-17 Thread James Carlson
Ole Troan writes: > > I don't know of any cases where omitting ND for IPv6 addresses makes > > much sense. > > OK, so at least we've clarified that we're in disagreement. I don't see > support in the specs for doing address resolution on links without > link-layer addresses. what would the purpose

Re: Neighbor Discovery and PPP links

2007-07-17 Thread Ole Troan
>> I think it's easy to see the disagreement just comparing the responses >> from Ole and James. >> >> Ole says: >> > I don't see the point of doing address resolution on links without >> > addresses. > > If you've actually got links with no addresses at all, then I agree. > That seems odd, thou

Re: Neighbor Discovery and PPP links

2007-07-17 Thread James Carlson
Markku Savela writes: > > > Yes, I expect address resolution to be done on PPP links, just as is > > described in 2461. I expect it to be done _regardless_ of the > > underlying link technology. > > If link like PPP does not have link layer addresses, there is no point > in doing "address resolu

Re: Neighbor Discovery and PPP links

2007-07-17 Thread Markku Savela
> Yes, I expect address resolution to be done on PPP links, just as is > described in 2461. I expect it to be done _regardless_ of the > underlying link technology. If link like PPP does not have link layer addresses, there is no point in doing "address resolution". Nobody should require impleme

Re: Neighbor Discovery and PPP links

2007-07-17 Thread James Carlson
Ole Troan writes: > > I think it's easy to see the disagreement just comparing the responses > > from Ole and James. > > > > Ole says: > >> I don't see the point of doing address resolution on links without > >> addresses. > > > > James says: > >> IPV6CP (RFC 2472) negotiates > >> only interface

RE: Neighbor Discovery and PPP links

2007-07-17 Thread James Carlson
Dave Thaler writes: > I think it's easy to see the disagreement just comparing the responses > from Ole and James. > > Ole says: > > I don't see the point of doing address resolution on links without > > addresses. If you've actually got links with no addresses at all, then I agree. That seems o

RE: Neighbor Discovery and PPP links

2007-07-17 Thread Dave Thaler
Ole Troan wrote: [...] > >> point-to-point - Neighbor Discovery handles such links just like > >> multicast links. (Multicast can be trivially > >> provided on point to point links, and interfaces > >> can be assigned link-local ad

Re: Neighbor Discovery and PPP links

2007-07-17 Thread Ole Troan
> I think it's easy to see the disagreement just comparing the responses > from Ole and James. > > Ole says: >> I don't see the point of doing address resolution on links without >> addresses. > > James says: >> IPV6CP (RFC 2472) negotiates >> only interface identifiers, and not addresses, and ND

RE: Neighbor Discovery and PPP links

2007-07-17 Thread Dave Thaler
I think it's easy to see the disagreement just comparing the responses from Ole and James. Ole says: > I don't see the point of doing address resolution on links without > addresses. James says: > IPV6CP (RFC 2472) negotiates > only interface identifiers, and not addresses, and ND > (2461) says

Re: Neighbor Discovery and PPP links

2007-07-17 Thread Ole Troan
> Came across this thread... > > http://www1.ietf.org/mail-archive/web/ipv6/current/msg02314.html > > > > However, in looking at draft-ietf-ipv6-over-ppp-v2-03, it seems that > this issue was never addressed. > > > > Is this intentional? Was there ever an agreement that ND should or > should n

Re: Neighbor Discovery and PPP links

2007-07-17 Thread James Carlson
Dave Thaler writes: > Is this intentional? Was there ever an agreement that ND should or > should not be done on PPP links? I'm surprised that it's a question at all. IPV6CP (RFC 2472) negotiates only interface identifiers, and not addresses, and ND (2461) says that Neighbor Discovery is suppose

Neighbor Discovery and PPP links

2007-07-17 Thread Dave Thaler
Came across this thread... http://www1.ietf.org/mail-archive/web/ipv6/current/msg02314.html However, in looking at draft-ietf-ipv6-over-ppp-v2-03, it seems that this issue was never addressed. Is this intentional? Was there ever an agreement that ND should or should not be done on PPP lin