XP clients sometimes ignore DHCPOFFERs

John Carr jbc4m at xmachina.itc.Virginia.EDU
Thu Mar 16 20:48:55 UTC 2006

I'm not certain that this is going to lead to the final resolution
because we have had at least 2 cases where the microsoft box in question
had not been moved.  They were office workstations that had been in
place for some time.  It is possible that they got leases from rogue
DHCP servers and then were exposed to "share network".  I'll certainly
look for that in the future.

 John Carr                            Network Systems
 jcarr at virginia.edu                   ITC
 434-982-4710                         University of Virginia

 Hostmaster - DNS, DHCP & IP Address space management

On Thu, 2006-03-16 at 12:41, David W. Hankins wrote:
> The technote quoted says it only happens on "non microsoft" DHCP servers.
> I wonder what MS's server is doing to get its clients out of this loop.
> This is all-hands week at ISC.  Because of that I'm fairly useless.
> IETF is next week.
> I won't have a chance to look in our lab for a few weeks at the earliest.
> Someone should be able to find out by getting a client into this state (it
> sounds like you need to give it a really long lease) and then attach it to
> a network where someone enabled "share network" on a regular Windows XP
> box.
> A pcap of that would save me a lot of effort.
> -- 
> David W. Hankins		"If you don't do it right the first time,
> Software Engineer			you'll just have to do it again."
> Internet Systems Consortium, Inc.		-- Jack T. Hankins

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