I-D ACTION:draft-ietf-dhc-agent-options-01.txt

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 A Revised Internet-Draft is available from the on-line Internet-Drafts 
 directories. This draft is a work item of the Dynamic Host Configuration 
 Working Group of the IETF.                                                

       Title     : DHCP Relay Agent Information Option                     
       Author(s) : M. Patrick
       Filename  : draft-ietf-dhc-agent-options-01.txt
       Pages     : 11
       Date      : 06/06/1997

Newer high-speed public Internet access technologies call for a high-speed 
modem to have a LAN attachment to one or more user hosts.  It is 
advantageous to use DHCP to assign user host IP addresses in this 
environment, but a number of security and scaling problems arise with such 
"public" DHCP use.  This draft calls for the definition of a "DHCP Relay 
Agent Information" option that is appended to a DHCP packet forwarded from 
a client to a server by a relay agent.  The Server may or may not use the 
information in the the Relay Agent Information option; in either case, it 
echoes back the option verbatim in server-to-client replies.     
          
The "Relay Agent Information" option contains sub-options that convey 
information known by the relay agent.  The initial sub-options are defined 
for a relay agent that is co-located in a public circuit access unit.  
These include a "circuit ID" for the incoming circuit and a "remote ID" 
which provides a trusted identifier for the remote high-speed modem.       

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