DHCP support for a dialed up subnet configuration ?

Krishnan Parameshwaran <krishnap@microsoft.com> Thu, 11 April 1996 03:55 UTC

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Date: Wed, 10 Apr 1996 23:54:29 -0400
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From: Krishnan Parameshwaran <krishnap@microsoft.com>
To: Multiple recipients of list <dhcp-v4@bucknell.edu>
Subject: DHCP support for a dialed up subnet configuration ?
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Hello DHC WG,

At the 35th IETF in Los Angeles I had the opportunity to explain a
possible problem which exists when a remote dial in network attempts to
connect to a DHCP network. Per the DHCP WG meeting notes & my
understanding i was to re-articulate the problem to the DHC WG maling
list and find out if there are any interest in working out a solution
for this real problem in the user community world that some of us live
in.

Problem Description
There are two scenarios in which we need support in DHCP to reduce
administrative cost & complexity of remote networks connecting to a DHCP
cloud. An easily implementable or extensible solution is preferred.

A. Subsidiary subnet scenario:
Imagine a Acme Corp with a DHCP network (of say - 50,000 nodes) spread
around 60 countries. A new subsidiary of Acme Corp has opened in
anytown, they have 10 nodes on a local subnet. They want to use
dial-on-demand box to connect one of their machine (& hence their
subsidiaries network) to Corporate for the duration of the connection. 

B. Home subnet scenario:
Acme's employees have home networks and want to have a capability to
connect up their home network to Corp, when they decide to work from
home. The employee can continue working, while their siblings are able
to use the connection to browse the Internet (thru the company) & get
information necessary to complete their term paper.

In the above scenarios the problem must be resolved without having to
implement a complete DHCP server at each network point of attachment
where dial in methods are used.  The issues are security and avoidance
of replicated DHCP servers if possible.

If you are interested in proposing a solution get in touch with me. I
will compile all the possible solutions (& the authors) & send a
compilation to the work group. We can discuss (if needed) at the next
ietf. I will wait till 4/30/96 for responses before I post a compilation
to the wg.

I have joined the mailing list only recently so please email me a copy
if you are responding to the WG. 

Thanks,

--
Krishnan 
Infrastructure Technologies
Information Technology Group
(206) 936 5076 
KrishnaP@Microsoft.Com