> -----邮件原件----- > 发件人: [email protected] [mailto:[email protected]] 代 表 > WashamFan > 发送时间: 2010年3月2日 9:58 > 收件人: Dayong Guo > 抄送: [email protected]; 'DHC WG' > 主题: Re: [Softwires] FW: New Version Notification for > draft-guo-softwire-6rd-ipv6-config-00 > > Hi, > > Do you assume the SP would provide DHCPv6 server and DNSv6 > server for the hosts behind 6rd CEs?
Not accurate. Taken the DHCPv6 option usage as an example, the SP provides the DHCPv6 server to the 6rd CPE which would act as a DHCPv6 relay agent, the IPv6 hosts behind the 6rd CPE in turn obtain the configuration information (e.g., DNS, NTP etc) from the DHCPv6 server. > Since the SP network is IPv4-only, IMO, DHCPv6 server and > DNSv6 server would be deployed in 6rd CE LAN side. In that > case, DHCPv4 options defined in this draft would be not > justified. If a given DHCPv6 server is deployed in a customer site, its IPv6 address should be a 6rd IPv6 address. In this case, the DHCP relay agent will relay the information-request message to the 6rd CPE of that site, rather than to the 6rd border relay. > I thought the hosts residing on the 6rd CE LAN side are dual stack > hosts. If there is any IPv6-only host, a DNS proxy might be > deployed (in the 6rd CE). Yes, if DNS is the only configuration information which the hosts need, the DNS proxy mechanism can be used. However, if the hosts need other configuration information besides DNS, they should use the stateless DHCPv6. Xiaohu > Any comments? > > washam > > ----- Original Message ----- > From: Dayong Guo <[email protected]> > Date: Tuesday, March 2, 2010 9:29 am > Subject: [Softwires] FW: New Version Notification for > draft-guo-softwire-6rd-ipv6-config-00 > To: [email protected] > Cc: 'DHC WG' <[email protected]> > > > > > > > > > > Dayong Guo > > > > Huawei Technologies Co., Ltd. > > email：[email protected] > > http://www.huawei.com > > > > Hi, all > > A new draft about IPv6 auto-configuration in 6rd scenario was > > submitted. Any comments are welcome. > > > > Xiaohu Xu & Dayong Guo > > > > -----Original Message----- > > From: IETF I-D Submission Tool [mailto:[email protected]] > > Sent: Monday, March 01, 2010 9:02 PM > > To: [email protected] > > Cc: [email protected] > > Subject: New Version Notification for > draft-guo-softwire-6rd-ipv6-config-00 > > > > > > A new version of I-D, draft-guo-softwire-6rd-ipv6-config-00.txt has been > > successfuly submitted by Xiaohu Xu and posted to the IETF repository. > > > > Filename: draft-guo-softwire-6rd-ipv6-config > > Revision: 00 > > Title: IPv6 Host Configuration in 6rd Deployment > > Creation_date: 2010-03-01 > > WG ID: Independent Submission > > Number_of_pages: 7 > > > > Abstract: > > This document proposes two new DHCPv4 options which allow IPv6 hosts > > to > > obtain configuration information (e.g., DNS servers). The DHCPv6 Server > > Option in DHCPv4 provides the IPv6 address of DHCPv6 server to the > > 6rd CPE. > > In result the 6rd CPE can relay DHCPv6 requests to > > DHCPv6 servers. As an alternative, the IPv6 DNS Server Option is > > used in > > the scenario where hosts only need the information of IPv6 DNS servers. > > > > > > > > > > The IETF Secretariat. > > > > > > _______________________________________________ > > Softwires mailing list > > [email protected] > > https://www.ietf.org/mailman/listinfo/softwires > > > _______________________________________________ > Softwires mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/softwires _______________________________________________ Softwires mailing list [email protected] https://www.ietf.org/mailman/listinfo/softwires
