how is the client identifer used in other DHCP servers.

David W. Hankins David_Hankins at
Wed Mar 22 20:29:47 UTC 2006

On Wed, Mar 22, 2006 at 12:12:15PM -0500, Ralph Blach wrote:
> Let me be more specific, do other DHCP server support sub-option 0 of the
> client identifer?
> So can I compose a unique string and send it other dhcp servers and have it
> interpreted.

The behaviour you're describing is a convention, not a standard.

All DHCP servers I'm aware of treat the entire glob as an opaque field,
and no other behaviour is currently defined in any reference (although
with recent work a client identifier starting with 255 is expected to
be produced a certain way - this is irrelevant as no new behaviour to
undertake to digest the contents of an option of that format has been

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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