Re: [dhcwg] Comments on 22 rev of the draft
Jim Bound <seamus@bit-net.com> Thu, 24 January 2002 13:58 UTC
Received: from optimus.ietf.org (ietf.org [132.151.1.19] (may be forged)) by ietf.org (8.9.1a/8.9.1a) with ESMTP id IAA21488 for <dhcwg-archive@odin.ietf.org>; Thu, 24 Jan 2002 08:58:25 -0500 (EST)
Received: (from daemon@localhost) by optimus.ietf.org (8.9.1a/8.9.1) id IAA28438 for dhcwg-archive@odin.ietf.org; Thu, 24 Jan 2002 08:58:28 -0500 (EST)
Received: from optimus.ietf.org (localhost [127.0.0.1]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id IAA28248; Thu, 24 Jan 2002 08:48:34 -0500 (EST)
Received: from ietf.org (odin [132.151.1.176]) by optimus.ietf.org (8.9.1a/8.9.1) with ESMTP id IAA28166 for <dhcwg@optimus.ietf.org>; Thu, 24 Jan 2002 08:48:30 -0500 (EST)
Received: from mail.users.bit-net.com (www.bit-net.com [208.146.132.4]) by ietf.org (8.9.1a/8.9.1a) with SMTP id IAA21307 for <dhcwg@ietf.org>; Thu, 24 Jan 2002 08:48:24 -0500 (EST)
Received: from localhost by mail.users.bit-net.com; (5.65v3.2/1.1.8.2/30Jul96-0143PM) id AA20349; Thu, 24 Jan 2002 08:46:46 -0500
Date: Thu, 24 Jan 2002 08:46:46 -0500
From: Jim Bound <seamus@bit-net.com>
To: Martin Stiemerling <Martin.Stiemerling@ccrle.nec.de>
Cc: Vijay Bhaskar A K <vijayak@india.hp.com>, dhcwg@ietf.org
Subject: Re: [dhcwg] Comments on 22 rev of the draft
In-Reply-To: <9080000.1011864530@elgar>
Message-Id: <Pine.OSF.3.95.1020124084540.9559G-100000@www.bit-net.com>
Mime-Version: 1.0
Content-Type: TEXT/PLAIN; charset="US-ASCII"
Sender: dhcwg-admin@ietf.org
Errors-To: dhcwg-admin@ietf.org
X-Mailman-Version: 1.0
Precedence: bulk
List-Id: <dhcwg.ietf.org>
X-BeenThere: dhcwg@ietf.org
Martin, It is permissable to get addresses from stateless and stateful in IPv6 addr conf. /jim On Thu, 24 Jan 2002, Martin Stiemerling wrote: > --On Donnerstag, Januar 24, 2002 00:10:27 +0530 Vijay Bhaskar A K > <vijayak@india.hp.com> wrote: > > >> What possible use can there be in allowing the client to select the > >> prefix that it wants? > > > > Please go through the follow scenario. Router is advertising 3ffe::/64 > > prefix and a host has generated an address of prefix 3ffe::/64 using > > router advertisements. Now, the host needs some more addresses of > > prefix 3ffe::/64. It chooses to use stateful autoconf (dhcpv6). The > > The client has nothing to choose! When the IPv6 router says in his router > advertisements "use stateless autoconfiguration" (Flags in router > advertisement are M=0, O=0), the client has to use stateless > autoconfiguration, i.e. form an IPv6 address with the advertised prefix. > When the router says "use stateful autoconfiguration" (Flags in router > advertisement are M=1, O=1), the client has to use stateful > autoconfiguration, i.e. request an IPv6 address from a DHCPv6 server. See > RFC 2641, section 4.2, and RFC 2462, section 5.2. > > We can't change the base IPv6 specification for DHCPv6. > > > server sends advertise saying that, it can allocate addresses in > > 3ffe::/64 and 5ffe::/64. Since, the client's wish is to get only > > 3ffe::/64, it can tell the server its preference for the prefix while > > sending Request. This will help in server not allocating the addresses > > that the client doesn't want. > > > > Moreover, if the client wants to communicate with the external site, it > > requires global rather than site local addresses. Here also, it can > > show the preference. > > > > DHCP clients are intended to arrange for ad-hoc > >> connections. Under what circumstances would the client have any > >> knowledge of what prefixes might be better than others? > > > > Obviosuly, the client using the stateless autoconf, knows the prefixes > > in the link, (by router advertisements). From the Advertise messages of > > the various servers, it knows about the prefixes in the link. > > > > > > > > _______________________________________________ > > dhcwg mailing list > > dhcwg@ietf.org > > https://www1.ietf.org/mailman/listinfo/dhcwg > > > > > > Martin Stiemerling > > NEC Europe Ltd. -- Network Laboratories Martin.Stiemerling@ccrle.nec.de > IPv4: http://www.ccrle.nec.de IPv6: http://www.ipv6.ccrle.nec.de > > _______________________________________________ > dhcwg mailing list > dhcwg@ietf.org > https://www1.ietf.org/mailman/listinfo/dhcwg > _______________________________________________ dhcwg mailing list dhcwg@ietf.org https://www1.ietf.org/mailman/listinfo/dhcwg
- [dhcwg] Comments on 22 rev of the draft Vijay Bhaskar A K
- RE: [dhcwg] Comments on 22 rev of the draft Bernie Volz (EUD)
- RE: [dhcwg] Comments on 22 rev of the draft Ralph Droms
- Re: [dhcwg] Comments on 22 rev of the draft Vijay Bhaskar A K
- Re: [dhcwg] Comments on 22 rev of the draft Vijay Bhaskar A K
- RE: [dhcwg] Comments on 22 rev of the draft Bernie Volz (EUD)
- RE: [dhcwg] Comments on 22 rev of the draft Bernie Volz (EUD)
- Re: [dhcwg] Comments on 22 rev of the draft Vijay Bhaskar A K
- Re: [dhcwg] Comments on 22 rev of the draft Vijay Bhaskar A K
- RE: [dhcwg] Comments on 22 rev of the draft Bernie Volz (EUD)
- RE: [dhcwg] Comments on 22 rev of the draft Vijayabhaskar A K
- RE: [dhcwg] Comments on 22 rev of the draft Bernie Volz (EUD)
- Re: [dhcwg] Comments on 22 rev of the draft Ralph Droms
- Re: [dhcwg] Comments on 22 rev of the draft Vijay Bhaskar A K
- Re: [dhcwg] Comments on 22 rev of the draft Vijay Bhaskar A K
- Re: [dhcwg] Comments on 22 rev of the draft Ted Lemon
- Re: [dhcwg] Comments on 22 rev of the draft Vijay Bhaskar A K
- Re: [dhcwg] Comments on 22 rev of the draft Ted Lemon
- Re: [dhcwg] Comments on 22 rev of the draft Ted Lemon
- Re: [dhcwg] Comments on 22 rev of the draft Martin Stiemerling
- Re: [dhcwg] Comments on 22 rev of the draft Jim Bound
- Re: [dhcwg] Comments on 22 rev of the draft Martin Stiemerling
- [dhcwg] Question on DHCPv6 Draft 23. Paul Tan