Re: [dhcwg] <draft-ietf-dhc-agent-subnet-selection-03.txt> - Clas sfull ?

Ted Lemon <Ted.Lemon@nominum.com> Thu, 10 October 2002 15:24 UTC

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Date: Thu, 10 Oct 2002 10:23:35 -0500
Subject: Re: [dhcwg] <draft-ietf-dhc-agent-subnet-selection-03.txt> - Clas sfull ?
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Cc: "'Van Aken Dirk'" <VanAkenD@thmulti.com>, "'dhcwg@ietf.org'" <dhcwg@ietf.org>, Dedecker Hans <DedeckerH@thmulti.com>, Dekeyser Miek <DekeyserM@thmulti.com>, "'Dirk.Ooms@alcatel.be'" <Dirk.Ooms@alcatel.be>
To: "Bernie Volz (EUD)" <Bernie.Volz@am1.ericsson.se>
From: Ted Lemon <Ted.Lemon@nominum.com>
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> Longest prefix matching is only needed if the server allows 
> overlapping subnets (such as 20.0.0.0/8 and 20.1.0/16). If the server 
> doesn't allow this, there is no problem.

The ISC DHCP server handles subnet overlaps just fine without the relay 
agent sending a subnet mask.   Bernie's point about which configuration 
you trust is the correct rebuttal to this whole line of reasoning, I 
think.   It would actually be harmful to send a subnet mask in the 
subnet selection option.

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