Re: RFC 2461 : Neighbor Discovery

2004-04-15 Thread Markus Jork
> > However, there is one other thing you should consider. In IPv6, we're > supposed to use /64s for pretty much all subnets. So it's not > inconceivable that router A sends a packet to one of those 2^64 > addresses belonging to the PPP subnet that _isn't_ an address for > router B. A naive im

RE: [rfc2462bis] whether we need the M/O flags

2004-04-15 Thread Soliman Hesham
(B (B > One thing we may have to care, however, is that the lack of (B > implementation might be a barrier of recycling the spec as a (B > DS, since (B > we'd need to show interoperable implementations. (B (B=> Good point. It would be good to get some clarification on whether (Bthis is an

Re: [rfc2462bis] whether we need the M/O flags

2004-04-15 Thread JINMEI Tatuya / $B?@L@C#:H(B
> On 15 Apr 2004 08:13:33 -0700, > Tim Hartrick <[EMAIL PROTECTED]> said: >> Just out of curiosity, what exactly do you mean by "running, shipping >> code that makes use of these bits." In particular, are you referring >> to particular implementations that >> >> - invoke DHCPv6 on the r

RE: [rfc2462bis] whether we need the M/O flags

2004-04-15 Thread Soliman Hesham
(B (B > I think that deprecating the O & M bits will be good. (B > I'm not too worried about incompatibility, as most code (B > do not support those bits anyway. (B (B=> I'm sorry, "most" is not good enough. If there is one implementation (Bthat supports it then we have _no_ right to do th

Re: [rfc2462bis] whether we need the M/O flags

2004-04-15 Thread Tim Hartrick
Jinmei, > > > I believe that it is entirely too late in the life of this protocol > > to be removing these bits. If there is in fact confusion over their usage > > then the usage should be clarified. The original intent of this revision was > > to clarify portions of the specification whi

Re: [rfc2462bis] whether we need the M/O flags

2004-04-15 Thread JINMEI Tatuya / $B?@L@C#:H(B
> On Thu, 15 Apr 2004 12:08:44 -0700 (PDT), > Tim Hartrick <[EMAIL PROTECTED]> said: > I believe that it is entirely too late in the life of this protocol > to be removing these bits. If there is in fact confusion over their usage > then the usage should be clarified. The original

Re: [rfc2462bis] whether we need the M/O flags

2004-04-15 Thread Alain Durand
Ok, what would break if we were to declare the O & M bit historic and issue a BCP recommending not to set them in RA? It is unclear to me what part of existing code would break - Alain. On Apr 15, 2004, at 12:08 PM, Tim Hartrick wrote: I believe that it is entirely too late in the life of t

Re: Response to AD comments on draft-ietf-ipv6-unique-local-addr-03.txt

2004-04-15 Thread Hans Kruse
The suggested language seems fine to me (aka just say yes...). --On Thursday, April 15, 2004 09:36 +0200 Brian E Carpenter <[EMAIL PROTECTED]> wrote: Stephen Sprunk wrote: Suggested text for 7.0: and PTR records for Local IPv6 addresses MAY be installed in the global DNS at the option

Re: [rfc2462bis] whether we need the M/O flags

2004-04-15 Thread Tim Hartrick
All, I believe that it is entirely too late in the life of this protocol to be removing these bits. If there is in fact confusion over their usage then the usage should be clarified. The original intent of this revision was to clarify portions of the specification which were not clear

Re: [rfc2462bis] whether we need the M/O flags

2004-04-15 Thread Vijayabhaskar A K
I am not sure whether this is a deficiency in this model. Currently, even if M/O is turned off, the nodes which had triggered stateful protocol will continue using it. Unless or otherwise you reboot all the nodes in the link, you cannot make the nodes to switch to stateless autoconf. This could be

Re: [rfc2462bis] whether we need the M/O flags

2004-04-15 Thread Alain Durand
On Apr 15, 2004, at 10:14 AM, Alain Durand wrote: A good design is not one where there is no extra feature to remove, not one where there is no new feature to add. This of course should read: A good design is one where there is no extra feature to remove, not one where there is no new feature to

Re: [rfc2462bis] whether we need the M/O flags

2004-04-15 Thread Alain Durand
I think that deprecating the O & M bits will be good. I'm not too worried about incompatibility, as most code do not support those bits anyway. Also, it is mostly an operational issue. All we need to do is to publish a BCP saying essentially: "Do not set the O & M bits in RA" and we are done. In t

Re: [rfc2462bis] whether we need the M/O flags

2004-04-15 Thread Ralph Droms
At 08:40 PM 4/15/2004 +0900, JINMEI Tatuya / =?ISO-2022-JP?B?GyRCP0BMQEMjOkgbKEI=?= wrote: [...] As far as I know, no host implementation supports the M flag. Regarding the O flag, I've implemented the host side of the flag, which invokes a DHCPv6 client upon receiving an RA with the O bit. But I'

Re: Response to AD comments on draft-ietf-ipv6-unique-local-addr-03.txt

2004-04-15 Thread Bob Hinden
Brian, At 12:36 AM 4/15/2004, Brian E Carpenter wrote: Stephen Sprunk wrote: ... > Suggested text for 7.0: > > and PTR records for Local IPv6 addresses MAY be installed in the global > DNS at the option of the site to which they are assigned. It is expected > that most sites will not make u

Re: Response to AD comments on draft-ietf-ipv6-unique-local-addr-03.txt

2004-04-15 Thread JINMEI Tatuya / $B?@L@C#:H(B
> On Fri, 9 Apr 2004 08:08:49 +0300 (EEST), > Pekka Savola <[EMAIL PROTECTED]> said: > Note that the latter paragraph intentionally excludes the discussion > of other kinds of limited-scope addresses from discussion, i.e., it > only mentions why adding link-locals is bad. Yeah, I know.

RE: [rfc2462bis] whether we need the M/O flags

2004-04-15 Thread Soliman Hesham
(B (B > > FWIW, I really think that there is no point in going round (B > and round again (B > > in this discussion when there is no harm done by keeping them. (B > > Removing them is not backward compatible for 2461 anyway. (B > > So I recommend we leave them as defined. (B > (B > I s

Re: [rfc2462bis] whether we need the M/O flags

2004-04-15 Thread JINMEI Tatuya / $B?@L@C#:H(B
> On Thu, 15 Apr 2004 08:49:53 -0400, > "Soliman Hesham" <[EMAIL PROTECTED]> said: >> As I just said in a separate message, one big question had >> been raised >> about rfc2462bis. It was, in my understanding, > => The question you raise affects 2461 and as a consequence it affects 24

RE: [rfc2462bis] whether we need the M/O flags

2004-04-15 Thread john . loughney
Hi all, (B (B> > As I just said in a separate message, one big question had been raised (B> > about rfc2462bis. It was, in my understanding, (B> (B> => The question you raise affects 2461 and as a consequence it affects 2462. (B> FWIW, I really think that there is no point in going round

Re: [rfc2462bis] what is the stateful configuration protocol

2004-04-15 Thread JINMEI Tatuya / $B?@L@C#:H(B
> On Thu, 15 Apr 2004 21:46:46 +0900, > JINMEI Tatuya <[EMAIL PROTECTED]> said: >> I also wanted to recall a conversation that taken place at the IPv6 interim >> meeting about the usefulness of the 'O' bit ... however, if this >> conversation is out-of-scope to the revision of RFC 2461, t

RE: [rfc2462bis] whether we need the M/O flags

2004-04-15 Thread Soliman Hesham
(B (B > As I just said in a separate message, one big question had (B > been raised (B > about rfc2462bis. It was, in my understanding, (B (B=> The question you raise affects 2461 and as a consequence it affects 2462. (BFWIW, I really think that there is no point in going round and round

Re: [rfc2462bis] what is the stateful configuration protocol

2004-04-15 Thread JINMEI Tatuya / $B?@L@C#:H(B
> On Thu, 15 Apr 2004 07:45:04 -0400, > Ralph Droms <[EMAIL PROTECTED]> said: > I had intended only to make the suggestion that "stateful" be dropped from > the phrase "other stateful configuration" (in RFC 2461) , because of the > potential confusion between "other stateful configuration

Re: [rfc2462bis] what is the stateful configuration protocol

2004-04-15 Thread Ralph Droms
Jinmei-san - I distracted the conversation a little with my posting ... I think we have come to consensus as you describe in http://www1.ietf.org/mail-archive/working-groups/ipv6/current/msg02280.html and we can consider the question of "how clearly we should specify the stateful address configurat

[rfc2462bis] whether we need the M/O flags

2004-04-15 Thread JINMEI Tatuya / $B?@L@C#:H(B
As I just said in a separate message, one big question had been raised about rfc2462bis. It was, in my understanding, whether we need the M/O flags for the "stateful" protocol(s) in the first place. (Actually, different people used different representation related to this issue, but, in my

Re: [rfc2462bis] what is the stateful configuration protocol

2004-04-15 Thread JINMEI Tatuya / $B?@L@C#:H(B
> On Wed, 14 Apr 2004 06:48:57 -0400, > Ralph Droms <[EMAIL PROTECTED]> said: > I think DHCPv6 ought to be cited as the protocol for other configuration > information, as well. > However, it seems to me the phrase "stateful protocol for *other* > configurations" is a little misleading.

Re: Response to AD comments on draft-ietf-ipv6-unique-local-addr-03.txt

2004-04-15 Thread Brian E Carpenter
Stephen Sprunk wrote: > > Thus spake "Brian Haberman" <[EMAIL PROTECTED]> > > Margaret Wasserman wrote: > > > This would appear to be incompatible with the IANA considerations > > > section that says: > > > > > >>If deemed > > >>appropriate, the authority may also consist of m

Re: Response to AD comments on draft-ietf-ipv6-unique-local-addr-03.txt

2004-04-15 Thread Brian E Carpenter
Stephen Sprunk wrote: ... > Suggested text for 7.0: > > and PTR records for Local IPv6 addresses MAY be installed in the global > DNS at the option of the site to which they are assigned. It is expected > that most sites will not make use of this option, but some sites may find > benefits in

Re: [rfc2462bis] what is the stateful configuration protocol

2004-04-15 Thread JINMEI Tatuya / $B?@L@C#:H(B
> On Tue, 13 Apr 2004 22:53:07 +0900, > JINMEI Tatuya <[EMAIL PROTECTED]> said: > Regarding issue 277 of rfc2462bis (Semantics of M/O flags), one > controversial issue is how clearly we should specify the stateful > address configuration protocol. > The question actually consists of the

Re: RFC 2461 : Neighbor Discovery

2004-04-15 Thread Iljitsch van Beijnum
On 15-apr-04, at 9:17, Subramonia Pillai - CTD, Chennai wrote: I am looking for “Router to Router” connected by PPP links (POS) running IPV6CP. Since ND is a union of (ARP, ICMP Rotuer Discovery, ICMP Redirect and others), which part of ND is needed (or has to be implemented) in both Routers. Th

RE: RFC 2461 : Neighbor Discovery

2004-04-15 Thread Subramonia Pillai - CTD, Chennai
Hi JINMEI and Hesham, (B (BI am looking for $B!H(JRouter to Router$B!I(J connected by PPP links (POS) running (BIPV6CP. (B (BSince ND is a union of (ARP, ICMP Rotuer Discovery, ICMP Redirect and (Bothers), which part of ND is needed (or has to be implemented) in both (BRouters. (B (

Re: RFC 2461 : Neighbor Discovery

2004-04-15 Thread JINMEI Tatuya / $B?@L@C#:H(B
> On Wed, 14 Apr 2004 06:17:18 -0400, > "Soliman Hesham" <[EMAIL PROTECTED]> said: >> From router point of view, global address can be get from >> Configuration. So >> I am still thinking, for router case do we need ND? > => Do you think hosts connected to your router > will need the i