Hi, washam
Thanks for your comments.
There some supplement to xiaohu's reply:
6rd scenario is more suitable to provide IPv6 access for home network
or small office, not for large business units. The formers generally need
configuration infomation from SP.
Dayong Guo
Huawei Technologies Co., Ltd.
email：[email protected]
http://www.huawei.com
> -----Original Message-----
> From: Xu Xiaohu [mailto:[email protected]]
> Sent: Tuesday, March 02, 2010 10:14 AM
> To: 'WashamFan'; 'Dayong Guo'
> Cc: [email protected]; 'DHC WG'
> Subject: re: [Softwires] FW: New Version Notification for
> draft-guo-softwire-6rd-ipv6-config-00
>
>
>
> > -----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
> >
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