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Re: [dhcwg] Dual-stack hosts using DHCP (was Re: [dhcwg] draft-ietf-dhc-dhcpv6-opt-nisconfig-05.txt)

Stig Venaas <Stig.Venaas@uninett.no> Wed, 17 March 2004 15:02 UTC

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Date: Wed, 17 Mar 2004 15:57:16 +0100
From: Stig Venaas <Stig.Venaas@uninett.no>
To: dhcwg@ietf.org
Subject: Re: [dhcwg] Dual-stack hosts using DHCP (was Re: [dhcwg] draft-ietf-dhc-dhcpv6-opt-nisconfig-05.txt)
Message-ID: <20040317145716.GG21617@sverresborg.uninett.no>
References: <4.3.2.7.2.20040315170154.02944ed8@flask.cisco.com> <002301c40b5a$c030ead0$cb412ca1@amer.cisco.com> <20040316135644.GR25659@login.ecs.soton.ac.uk>
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I agree that it may be possible to solve the issue on the host side,
leaving to the host to decide what information to use. However, I
still think it could be useful in some cases to learn IPv4 addresses
of services from a DHCPv6 server, simply to reduce amount of signalling
and not requiring DHCPv4 server. One simple, and I think pretty harmless,
solution could be to use IPv4-mapped IPv6 addresses.

If this is to be solved on the host, I wonder how I as an administrator
can make sure the right thing happens. Can we (IETF) at least do some
sort of bcp or guidelines? I think the guidelines may be just as
important for implementers of DHCP clients. For the administrator to do
something, there must be some knobs to turn or whatever.

Stig

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