Two different IP addresses leased out to the same device
dhcp1 at thehobsons.co.uk
Thu Sep 10 08:08:41 UTC 2009
Markus Zuercher wrote:
> > This is a longstanding issue when a machine boots with multiple
>> - and it's mostly down to Microsoft that the problem exists. The RFC doesn't
>> specify what should be in the Client-ID, and Microsoft decided that putting
>> the MAC address in there made sense. This isn't wrong, just different to
>> everyone else who default to not supplying a Client-ID at all.
>Hmm, If I understand you correct, the client's PXE client first
>acquired an IP address, supplied a Client-ID and then Windows did the
>same thing without a Client-ID? I think it would help to not save the
>Client-ID in the lease database - is this correct?
Other way round - it's Windows that supplies a client-id, as far as I
know it's the only client that defaults to supplying one.
> > A proposed feature that I believe never made it was to allow the
>> administrator to configure the database key - it currently defaults to
>> "pick-first(client-id, hardware)". If changed to just plain "hardware" then
>> Client-ID would be ignored.
>Looks like this is in the program code, right? Is there anything I can
>do in my server config to get the same effect?
Not at the moment. As I understand it, it was a proposed feature but
it didn't make it into the code.
Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
author Gladys Hobson. Novels - poetry - short stories - ideal as
Christmas stocking fillers. Some available as e-books.
More information about the dhcp-users