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[dhcwg] Re: Free Options



I wonder if it might be worth adding these as a footnote to the IANA page? Did you find others in the range 224-254 that might be useful to record?

- Ralph

On Jan 10, 2008, at Jan 10, 2008,11:10 AM, Bernie Volz (volz) wrote:

Yes, I did find (or was providing some information) about these options:

249		Windows XP clients request option 249.
252		MAC OS X clients request option 252.

But as they are outside the RFC 3942 reclassified range, there was no point in doing anything about them.

- Bernie

-----Original Message-----
From: Ralph Droms (rdroms)
Sent: Thursday, January 10, 2008 11:08 AM
To: dhcp-users at isc.org
Cc: Bernie Volz (volz); DHC WG
Subject: Re: Free Options

Ruben - Take a look at RFC 2131, RFC 2132, RFC 3942 and http://www.iana.org/assignments/bootp-dhcp-parameters
 for details about option codes available for private use.

Executive summary - with some exceptions, option codes 224-254 are
available for private use.  I don't recall the details; I think the
two option codes you mentioned are known to be in unofficial use, but
they don't seem to be documented in http://www.iana.org/assignments/bootp-dhcp-parameters
.  Bernie - did you receive any information about 249 and 252 in your
followup to RFC 3942?

- Ralph Droms

On Jan 10, 2008, at Jan 10, 2008,10:43 AM, Ruben Rios wrote:

Hi there,
I have been searching on DHCP Options because I would like to use
some private ones for my own private use. Can anyone tell me which
of them can I use for that? I thought I could use any, but while
eavesdropping on my network I have realized some of these options
are already in use ( 249: Classless static routes; 252: proxy
autodiscovery). Are there any others I should avoid using?

Thanks a lot!
Rubén Ríos



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