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[dhcwg] applicability of draft-ietf-dhc-dhcpv6-ctep-opt-01

Pekka Savola <pekkas@netcore.fi> Sun, 04 April 2004 23:41 UTC

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Date: Fri, 02 Apr 2004 16:44:27 +0300
From: Pekka Savola <pekkas@netcore.fi>
To: dhcwg@ietf.org
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Subject: [dhcwg] applicability of draft-ietf-dhc-dhcpv6-ctep-opt-01
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Hi,

I glanced through draft-ietf-dhc-dhcpv6-ctep-opt-01.txt.  I also 
discussed this problem space with Vijay in IETF59.

I think the applicability and usefulness of this option is *very* 
questionable.

As it is a DHCPv6 option, it can be only used inside v6 sites with
basically their own DHCPv6 server in each.

That is, imagine that you wanted to connect 10 sites together from
their border router using full-mesh configured tunneling.  You'll have 
to set up 9 tunnels in each site, 9*10 tunnels in total.  

What's the gain of using DHCPv6 here, I ask?  You'll have to set up
these 9 tunnels in each of the 10 DHCPv6 servers in any case, 90
DHCPv6 configuration entries in total.  You're trading off having to
configure 90 tunnels in 10 border routers to having to configure 90
tunnels in 10 DHCPv6 servers.

IMHO, in this kind of set-up, Using DHCPv6 just doesn't seem to make 
sense.

Is there something I've missed?

-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings


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