Re: [dhcwg] Re: Rethinking autoconfig, was Re: prefix length determination for DHCPv6

2007-08-28 Thread Ted Lemon
On Aug 23, 2007, at 5:20 AM, Mark Smith wrote: I don't like doing that sort of thing, but I like that both the DHCP server and hosts are robust enough to handle it gracefully when I do. A few extra packets seems to me to be a relatively small price to pay for robustness and resilience. I'm

Re: Rethinking autoconfig, was Re: prefix length determination for DHCPv6

2007-08-23 Thread Mark Smith
On Tue, 21 Aug 2007 08:52:49 -0400 James Carlson <[EMAIL PROTECTED]> wrote: > Iljitsch van Beijnum writes: > > On 20-aug-2007, at 15:02, James Carlson wrote: > > > To me, that sounds like high cost with essentially no benefit. What > > > am I missing? > This means that the DHCP server is perfect

Re: [dhcwg] Re: Rethinking autoconfig, was Re: prefix length determination for DHCPv6

2007-08-21 Thread David W. Hankins
On Tue, Aug 21, 2007 at 10:07:53PM +0900, Jun-ichiro itojun Hagino wrote: > i wonder how many of those who are voicing opinion here are > actually using IPv6 in a daily basis. ISC is native IPv6, no tunnels (except to employees' homes), dual stack. We are, proverbially, "soaking in it

RE: Rethinking autoconfig, was Re: prefix length determination for DHCPv6

2007-08-21 Thread Bernie Volz \(volz\)
--Original Message- From: Iljitsch van Beijnum [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 21, 2007 7:26 AM To: Bernie Volz (volz) Cc: Markku Savela; ipv6@ietf.org Subject: Re: Rethinking autoconfig, was Re: prefix length determination for DHCPv6 On 21-aug-2007, at 13:02, Bernie Volz ((volz)) wro

Re: [dhcwg] Re: Rethinking autoconfig, was Re: prefix length determination for DHCPv6

2007-08-21 Thread Ralph Droms
I don't use or administer IPv6 on a daily basis. I do run an IPv6 testbed and experiment with various clients against the Cisco IOS and CNR DHCP servers, so I have some experience with host configuration using SLAAC, DHCP, SLAAC+DHCP... - Ralph On Aug 21, 2007, at Aug 21, 2007,9:07 AM, Jun

Re: Rethinking autoconfig, was Re: prefix length determination for DHCPv6

2007-08-21 Thread James Carlson
Jun-ichiro itojun Hagino writes: > i wonder how many of those who are voicing opinion here are > actually using IPv6 in a daily basis. I am. Does that help? -- James Carlson, Solaris Networking <[EMAIL PROTECTED]> Sun Microsystems / 1 Network Drive 71.232W Vox

Re: Rethinking autoconfig, was Re: prefix length determination for DHCPv6

2007-08-21 Thread Jun-ichiro itojun Hagino
i wonder how many of those who are voicing opinion here are actually using IPv6 in a daily basis. itojun IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www1.ietf.org/mailman/l

Re: Rethinking autoconfig, was Re: prefix length determination for DHCPv6

2007-08-21 Thread James Carlson
Iljitsch van Beijnum writes: > On 20-aug-2007, at 15:02, James Carlson wrote: > > To me, that sounds like high cost with essentially no benefit. What > > am I missing? > > What it does and saves is very much dependent on the circumstances. > > Saving one or two packets here or there in and of it

Re: Rethinking autoconfig, was Re: prefix length determination for DHCPv6

2007-08-21 Thread Iljitsch van Beijnum
On 21-aug-2007, at 13:02, Bernie Volz ((volz)) wrote: And, there's always the case where the DHCP server has lost it memory (i.e. disk) - in that case it would have no idea what was or was not leased. Yes, the server would have to tell nodes to do DAD until all the leases from before the reb

RE: Rethinking autoconfig, was Re: prefix length determination for DHCPv6

2007-08-21 Thread Bernie Volz \(volz\)
bject: Re: Rethinking autoconfig,was Re: prefix length determination for DHCPv6 > From: Iljitsch van Beijnum <[EMAIL PROTECTED]> > > Avoiding DAD doesn't sound like a good goal to me. It means that the > > system _assumes_ that the rest of the world is perfect and never

Re: Rethinking autoconfig, was Re: prefix length determination for DHCPv6

2007-08-21 Thread Markku Savela
> From: Iljitsch van Beijnum <[EMAIL PROTECTED]> > > Avoiding DAD doesn't sound like a good goal to me. It means that the > > system _assumes_ that the rest of the world is perfect and never has > > any problems. > > Let me rephrase: making DAD more efficient. If there's a DHCP server > prese

Re: Rethinking autoconfig, was Re: prefix length determination for DHCPv6

2007-08-21 Thread Iljitsch van Beijnum
On 20-aug-2007, at 15:02, James Carlson wrote: The first step is to add an option to the router solicitation message that makes it possible to use this message as the start of a DHCP exchange. This way, a host doesn't have to know whether it will receive configuration through RAs or DHCP or both

Re: Rethinking autoconfig, was Re: prefix length determination for DHCPv6

2007-08-20 Thread James Carlson
Iljitsch van Beijnum writes: > The first step is to add an option to the router solicitation message > that makes it possible to use this message as the start of a DHCP > exchange. This way, a host doesn't have to know whether it will > receive configuration through RAs or DHCP or both, and t

Rethinking autoconfig, was Re: prefix length determination for DHCPv6

2007-08-19 Thread Iljitsch van Beijnum
On 17-aug-2007, at 22:09, james woodyatt wrote: To stop unnecessary DHCP traffic. [...] I think what we're seeing here is a vocal faction of the community who believe that DHCP discovery multicasts are always necessary, whether RA is present or not, and whether M=0 or M=1, despite the te