Re: [dhcwg] RFC 3256 on The DOCSIS Device Class DHCP

Bud Millwood <> Fri, 19 April 2002 08:46 UTC

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From: Bud Millwood <>
Reply-To: Bud Millwood <>
Organization: Weird Solutions, Inc.
Subject: Re: [dhcwg] RFC 3256 on The DOCSIS Device Class DHCP
Date: Fri, 19 Apr 2002 10:50:13 +0200
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We have at least one customer making policy decisions on the server based on 
the Class Identifier (option 60) value. Apparently, it's always "docsis1.0" 
for a DOCSIS cable-modem. (Not sure about docsis 1.1).

But even though this method appears to work fine in practice, I welcome this 
new draft because of the security aspect, as well as the possibility for 
future expansion using the reserved bits.

I think it's important to let a trusted device give us as much information as 
possible about the clients we're servicing. So important, in fact, that I 
have wondered about the possibility of *requiring* *any* kind of relay agent 
(DOCSIS or not) to insert option 82, with information about the originating 
machine (hwtype-mac, for example). The premise being that even in 
corporations, most routers are trusted equipment, usually locked away in a 
basement somewhere.

Bud Millwood
Weird Solutions, Inc.
tel: +46 70 566 7803
fax: +46 8 758 3687

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