Re: [dhcwg] Question: in RFC3046 why did Agent Subnet MaskSub-optiondie

Simon Kelley <simon@thekelleys.org.uk> Mon, 19 March 2007 13:52 UTC

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Date: Mon, 19 Mar 2007 13:52:36 +0000
From: Simon Kelley <simon@thekelleys.org.uk>
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To: "Bernie Volz (volz)" <volz@cisco.com>
Subject: Re: [dhcwg] Question: in RFC3046 why did Agent Subnet MaskSub-optiondie
References: <8E296595B6471A4689555D5D725EBB21038C8C2E@xmb-rtp-20a.amer.cisco.com>
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Cc: DHC WG <dhcwg@ietf.org>, Ted Lemon <Ted.Lemon@nominum.com>, "Ralph Droms (rdroms)" <rdroms@cisco.com>
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> On Mar 18, 2007, at 7:20 PM, Ralph Droms wrote:
>> Expanding on Ted's theme a little - if we're going to consider  
>> extensions to
>> DHCP that can automate the process of configuring the DHCP server,  
>> we ought
>> to take a little time to consider other, similar extensions and  
>> define them
>> all at once rather than one at a time...
> 

I proposed in the draft which went to Ted an extension to the CSR format
to include the broadcast address, for free in common cases. That would
probably count as a "similar extension".

Another useful one might be a "default option override" which allows the
relay to tell the server "in the absence of explicit configuration, use
value Y for option X" An obvious use for that would be default gateway -
a relay may be in a much better position to create a good default for
that then a  remote server. It should probably be general, and allow the
default for any option to be set.

Cheers,

Simon.





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