Re: [CGA-EXT] for comments: Usage of Host Generating Interface Identifier in DHCPv6
"Frank Xia" <xiayangsong@huawei.com> Mon, 18 February 2008 05:33 UTC
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From: Frank Xia <xiayangsong@huawei.com>
To: Iljitsch van Beijnum <iljitsch@muada.com>
References: <004d01c8705e$7f1b9550$0301a8c0@china.huawei.com> <FC4A62E9-83B7-4C2E-B2D9-9CAF7093694C@muada.com>
Date: Sun, 17 Feb 2008 23:24:32 -0600
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Cc: dhcwg@ietf.org, cga-ext@ietf.org
Subject: Re: [CGA-EXT] for comments: Usage of Host Generating Interface Identifier in DHCPv6
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Hi Iljitsch The proposal is a general DHCP procedure not specific to CGA. To be honest, the work is originated from our point-to-point prefix allocation research such as, http://tools.ietf.org/id/draft-xia-mipshop-fmip-ptp-01.txt http://tools.ietf.org/wg/16ng/draft-sarikaya-16ng-prefix-delegation-02.txt, http://tools.ietf.org/wg/dime/draft-sarikaya-dime-prefix-delegation-ps-00.txt Please see my other inline comments... BR Frank ----- Original Message ----- From: "Iljitsch van Beijnum" <iljitsch@muada.com> To: "Frank Xia" <xiayangsong@huawei.com> Cc: <dhcwg@ietf.org>; <cga-ext@ietf.org> Sent: Saturday, February 16, 2008 6:40 AM Subject: Re: [CGA-EXT] for comments: Usage of Host Generating Interface Identifier in DHCPv6 > On 16 feb 2008, at 6:40, Frank Xia wrote: > > > http://www.ietf.org/internet-drafts/draft-xia-dhc-host-gen-id-00.txt > > > Abstract: > > This document describes a procedure for configuring a host's IPv6 > > address which prefix is allocated from a DHCPv6 server while it's > > interface identifier is independently generated by the host. The > > method is applicable to Cryptographically Generated Addresses (CGA). > > I gave this a quick read, it's possible that I missed a detail here or > there. Frank=>thank for your quick review. > > Will DHCPv6 servers be given out the same prefix to multiple hosts? > Obviously one prefix per host is problematic. Frank=>This draft only deals with one prefix per host case. In this scenario, each host has unique prefix. Probably, you can check out the following documents about point-to-point link model: http://tools.ietf.org/rfc/rfc4968.txt http://tools.ietf.org/rfc/rfc5121.txt http://www.ietf.org/rfc/rfc3314.txt > > Also, why not simply have the hosts learn the prefix from routers? Frank=>Stateless address configuration requires prefix advertised from routers. But, in stateful address configuration, prefixes should be from a DHCP server. It makes sense that prefixes are managed by a central DHCP server in some situation. > They need to see prefixes in router advertisements anyway to know that > the prefix in question is on-link. Then, it's possible to ask the > DHCPv6 server for a specific address in that prefix using the IA > option, like I suggested in http://www.ietf.org/internet-drafts/draft-van-beijnum-cga-dhcp-interaction-00.txt > > Iljitsch > _______________________________________________ CGA-EXT mailing list CGA-EXT@ietf.org http://www.ietf.org/mailman/listinfo/cga-ext
- [CGA-EXT] for comments: Usage of Host Generating … Frank Xia
- Re: [CGA-EXT] for comments: Usage of Host Generat… Iljitsch van Beijnum
- Re: [CGA-EXT] [dhcwg] for comments: Usage of Host… Francis Dupont
- Re: [CGA-EXT] for comments: Usage of Host Generat… Sheng Jiang
- Re: [CGA-EXT] for comments: Usage of Host Generat… Frank Xia
- Re: [CGA-EXT] [dhcwg] for comments: Usage of Host… Frank Xia