Re: [dhcwg] Re: DHCID and the use of MD5 [Re: Last Call: 'Resolution ofFQDN Conflicts among DHCP Clients' to Proposed Standard]

2005-11-29 Thread David W. Hankins
On Mon, Nov 28, 2005 at 05:20:09PM -0500, Bernie Volz (volz) wrote: Yes, I can. The ISC's DHCP server (www.isc.org) does this (I'm not sure whether it uses MD5 to encode the client identity or not). Ted might know for sure. It does, though it only encodes the client identity (client

Re: [dhcwg] Re: DHCID and the use of MD5 [Re: Last Call: 'Resolution ofFQDN Conflicts among DHCP Clients' to Proposed Standard]

2005-11-29 Thread Ted Lemon
On Monday 28 November 2005 23:40, Harald Tveit Alvestrand wrote: This means that we will not have a backwards compatibility issue with the installed base if we change the format of the record, but *will* have a procedural compatibility issue if we don't keep the property of you can know the

Re: [dhcwg] Re: DHCID and the use of MD5 [Re: Last Call: 'Resolution ofFQDN Conflicts among DHCP Clients' to Proposed Standard]

2005-11-29 Thread Ted Lemon
The Nominum DHCP server (DCS) supports the exact mechanism described in the collection of documents, except that the data is stored in a TXT record rather than a DHCID record, because we are waiting on the DHCID record. We also implement the older version of the protocol that the ISC server

RE: [dhcwg] Re: DHCID and the use of MD5 [Re: Last Call: 'Resolution ofFQDN Conflicts among DHCP Clients' to Proposed Standard]

2005-11-28 Thread Bernie Volz \(volz\)
; dhcwg@ietf.org; namedroppers@ops.ietf.org; Pekka Savola; ietf@ietf.org Subject: [dhcwg] Re: DHCID and the use of MD5 [Re: Last Call: 'Resolution ofFQDN Conflicts among DHCP Clients' to Proposed Standard] In message [EMAIL PROTECTED], Ted Lemon writes: Making a hash function

RE: [dhcwg] Re: DHCID and the use of MD5 [Re: Last Call: 'Resolution ofFQDN Conflicts among DHCP Clients' to Proposed Standard]

2005-11-28 Thread Bernie Volz \(volz\)
; Pekka Savola; ietf@ietf.org Subject: [dhcwg] Re: DHCID and the use of MD5 [Re: Last Call: 'Resolution ofFQDN Conflicts among DHCP Clients' to Proposed Standard] In message [EMAIL PROTECTED], Ted Lemon writes: Making a hash function interchangeable in DHCID makes the conflict detection

RE: [dhcwg] Re: DHCID and the use of MD5 [Re: Last Call: 'Resolution ofFQDN Conflicts among DHCP Clients' to Proposed Standard]

2005-11-28 Thread Harald Tveit Alvestrand
--On mandag, november 28, 2005 17:00:39 -0500 Bernie Volz (volz) [EMAIL PROTECTED] wrote: I confess that I don't see the problem. The updater would do a DNS query for DHCID RRs; it would be given all of the stored records. That's not how the current update algorithm works. Sure, we could

RE: [dhcwg] Re: DHCID and the use of MD5 [Re: Last Call: 'Resolution ofFQDN Conflicts among DHCP Clients' to Proposed Standard]

2005-11-28 Thread Bernie Volz \(volz\)
To: Bernie Volz (volz); Steven M. Bellovin; Ted Lemon Cc: dhcwg@ietf.org; Pekka Savola; ietf@ietf.org; namedroppers@ops.ietf.org Subject: RE: [dhcwg] Re: DHCID and the use of MD5 [Re: Last Call: 'Resolution ofFQDN Conflicts among DHCP Clients' to Proposed Standard] --On mandag

RE: [dhcwg] Re: DHCID and the use of MD5 [Re: Last Call: 'Resolution ofFQDN Conflicts among DHCP Clients' to Proposed Standard]

2005-11-28 Thread Bernie Volz \(volz\)
. Bellovin Sent: Saturday, November 26, 2005 11:57 AM To: Pekka Savola Cc: dhcwg@ietf.org; namedroppers@ops.ietf.org; iesg@ietf.org; ietf@ietf.org Subject: [dhcwg] Re: DHCID and the use of MD5 [Re: Last Call: 'Resolution ofFQDN Conflicts among DHCP Clients' to Proposed Standard] In message

RE: [dhcwg] Re: DHCID and the use of MD5 [Re: Last Call: 'Resolution ofFQDN Conflicts among DHCP Clients' to Proposed Standard]

2005-11-28 Thread Harald Tveit Alvestrand
Thanks - these responses point out very clearly that the mechanism is being used as described, *except* for the bit that's contentious (use of MD5 for information hiding). This means that we will not have a backwards compatibility issue with the installed base if we change the format of the

Re: [dhcwg] Re: DHCID and the use of MD5 [Re: Last Call: 'Resolution ofFQDN Conflicts among DHCP Clients' to Proposed Standard]

2005-11-28 Thread Harald Tveit Alvestrand
--On tirsdag, november 29, 2005 00:03:03 -0700 Ted Lemon [EMAIL PROTECTED] wrote: On Monday 28 November 2005 23:40, Harald Tveit Alvestrand wrote: This means that we will not have a backwards compatibility issue with the installed base if we change the format of the record, but *will* have