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

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.
http://www.weird-solutions.com
tel: +46 70 566 7803
fax: +46 8 758 3687
mailto:budm@weird-solutions.com

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