Re: simpler prefix delegation

2004-03-22 Thread Erik Nordmark
FWIW RFC 2461+2462 is 118 pages and I don't recall people complaining about them being too complex to implement. I suspect 2 more pages for DHCPv2 + DHCPV6 PD isn't that significant. So I think there is something other than page count that matters. Writing clear specifications which answers the

Re: simpler prefix delegation

2004-03-22 Thread Fred Templin
This discussion (and the bykim draft) reminds me of some materials I briefed a long time ago during an NGTRANS session at IETF50: http://6bone.net/ngtrans/IETF-50-Minneapolis/Templin-v6v4compat.ppt (See slides #15-#19; note that the colors in the diagrams denote distinct IPv6 prefix

Re: simpler prefix delegation

2004-03-21 Thread Ralph Droms
At 10:44 AM 3/20/2004 +0200, Pekka Savola wrote: On Fri, 19 Mar 2004, Brian E Carpenter wrote: As I've said before in reference to the recursive name server discovery discussion, I don't believe it benefits the network operations community to have multiple solutions to these kind of

Re: simpler prefix delegation

2004-03-21 Thread Wataru Kawakami -ipv4-
The network architect/engineer/admin (customer) community should be considered here, as well. Are there any customers that have said DHCPv6 PD is too complex, we want something simpler? I haven't heard from any. That's too much saying. If delegation of ``prefix'' to CPE is not needed

Re: simpler prefix delegation

2004-03-21 Thread Ralph Droms
At 04:24 PM 3/18/2004 +0200, Pekka Savola wrote: On Thu, 18 Mar 2004, Ole Troan wrote: Haberman's ICMP prefix delegation draft initiated the IPv6 W.G's work on prefix delegation. it pretty soon became clear that we were reinventing DHCP, so instead of developing a new DHCP lookalike, we

RE: simpler prefix delegation

2004-03-21 Thread Christian Huitema
the amount of work required to implement PD using a DHCP based protocol engine versus an ICMP based protocol engine is similar. the benefit of reusing DHCP (ignoring the fact that its already an RFC and has numerous implementation) is that the cost of implementing and deploying all the N++

Re: simpler prefix delegation

2004-03-21 Thread Ole Troan
the amount of work required to implement PD using a DHCP based protocol engine versus an ICMP based protocol engine is similar. the benefit of reusing DHCP (ignoring the fact that its already an RFC and has numerous implementation) is that the cost of implementing and deploying all the N++

Re: simpler prefix delegation

2004-03-21 Thread JINMEI Tatuya / 神明達哉
On Thu, 18 Mar 2004 09:45:12 -0500, Ralph Droms [EMAIL PROTECTED] said: For the IPv6 WG - let's cut to the chase. Is there interest in expending any more of the IETF's resources reopening a problem for which we have rough consensus on a solution, published specifications and running

Re: simpler prefix delegation

2004-03-20 Thread Pekka Savola
On Fri, 19 Mar 2004, Brian E Carpenter wrote: As I've said before in reference to the recursive name server discovery discussion, I don't believe it benefits the network operations community to have multiple solutions to these kind of requirements. The vendor community would probably

Re: simpler prefix delegation

2004-03-19 Thread Brian E Carpenter
[EMAIL PROTECTED] wrote: On 18 March 2004, Pekka Savola wrote: On Thu, 18 Mar 2004, Ralph Droms wrote: Is there interest in expending any more of the IETF's resources reopening a problem for which we have rough consensus on a solution, published specifications and running code?

Re: simpler prefix delegation

2004-03-19 Thread Christian Strauf
- implementation complexity (how many lines of code, any particularly difficult issues, etc.) -- DHCPv6: dozens? of thousands I don't see how this has a practical impact especially in terms of configuration. In all the implementations of DHCPv6 that I encountered, DHCPv6 PD is trivial to set

RE: simpler prefix delegation

2004-03-19 Thread Byung-Yeob Kim
Reaching rough consensus? As all of us might know, alternatives to DHCP have always been controversial. Even I admit that DHCPv6 looks good for hierarchical prefix delegation and it is hard to find HDCP-less place, even though some of my colleagues are still frenzy about 1894 Ubiquitous something

simpler prefix delegation

2004-03-18 Thread Pekka Savola
Hi, This started from me looking at draft-bykim-ipv6-hpd-01.txt, what it was before that, DHCPv6 + PD, a few proposals at v6ops for integrated prefix delegation, etc.. -- I couldn't help thinking, there must be an easier way to delegate an IPv6 prefix in the simplest setups (e.g., when v6

Re: simpler prefix delegation

2004-03-18 Thread Shin Miyakawa
This started from me looking at draft-bykim-ipv6-hpd-01.txt, what it was before that, DHCPv6 + PD, a few proposals at v6ops for integrated prefix delegation, etc.. -- I couldn't help thinking, there must be an easier way to delegate an IPv6 prefix in the simplest setups (e.g., when v6

Re: simpler prefix delegation

2004-03-18 Thread Pekka Savola
On Thu, 18 Mar 2004, Shin Miyakawa wrote: when v6 connectivity is obtained through a tunnel) -- DHCPv6 is way too heavy-weight. way too Heavy Weight is not well-defined. Please explain a bit more how you decide this. Pekka ? When we dicuss about measurement, we should be mathematical.

Re: simpler prefix delegation

2004-03-18 Thread Ralph Droms
Pekka, We have some experience with the DHCPv6 spec that is useful in evaluating its complexity. There are roughly 6-10 full implementations of DHCPv6, including prefix delegation, address assignment and stateless. We performed interoperability testing of 6 or so implementations last year at

Re: simpler prefix delegation

2004-03-18 Thread Ole Troan
Pekka, This started from me looking at draft-bykim-ipv6-hpd-01.txt, what it was before that, DHCPv6 + PD, a few proposals at v6ops for integrated prefix delegation, etc.. -- I couldn't help thinking, there must be an easier way to delegate an IPv6 prefix in the simplest setups (e.g., when v6

Re: simpler prefix delegation

2004-03-18 Thread Pekka Savola
Reponding to both you and Ralph. [Ralph:] . The CLI sets up a pool of prefixes for delegation(1), associates the prefix pool with other DHCPv6 server configuration information (2) and enables the server on an interface (3). In this example, there is no customer identification or

Re: simpler prefix delegation

2004-03-18 Thread Ole Troan
Pekka, [Ralph:] . The CLI sets up a pool of prefixes for delegation(1), associates the prefix pool with other DHCPv6 server configuration information (2) and enables the server on an interface (3). In this example, there is no customer identification or authentication (which is

Re: simpler prefix delegation

2004-03-18 Thread Laurent . Clevy
Hi, We are working on the subject since last year and have a first prototype that does prefix delegation and global address configuration on a simple IPv6 network. Here follows some thoughts that could help, I hope. Pekka Savola wrote: Hi, This started from me looking at

Re: simpler prefix delegation

2004-03-18 Thread Pekka Savola
On Thu, 18 Mar 2004, Ole Troan wrote: Haberman's ICMP prefix delegation draft initiated the IPv6 W.G's work on prefix delegation. it pretty soon became clear that we were reinventing DHCP, so instead of developing a new DHCP lookalike, we decided to reuse the existing DHCP infrastructure

Re: simpler prefix delegation

2004-03-18 Thread Ralph Droms
For the IPv6 WG - let's cut to the chase. Is there interest in expending any more of the IETF's resources reopening a problem for which we have rough consensus on a solution, published specifications and running code? We have lots of important problems that have *no* solution, yet; let's move

Re: simpler prefix delegation

2004-03-18 Thread Pekka Savola
On Thu, 18 Mar 2004, Ralph Droms wrote: Is there interest in expending any more of the IETF's resources reopening a problem for which we have rough consensus on a solution, published specifications and running code? You say that carefully, but still giving an impression as if rough consensus

RE: simpler prefix delegation

2004-03-18 Thread matthew . ford
On 18 March 2004, Pekka Savola wrote: On Thu, 18 Mar 2004, Ralph Droms wrote: Is there interest in expending any more of the IETF's resources reopening a problem for which we have rough consensus on a solution, published specifications and running code? You say that carefully, but

Re: simpler prefix delegation

2004-03-18 Thread Alain Durand
On Mar 18, 2004, at 8:47 AM, [EMAIL PROTECTED] wrote: On 18 March 2004, Pekka Savola wrote: The fact that there is a solution out there, which fits the needs of some users, does not mean that there can not (or should not) be a different kind of solution which would seem to be much more