[dns-operations] 答复: L-Root IPv6 Address renumbering

Terry Manderson terry.manderson at icann.org
Mon Mar 14 01:57:48 UTC 2016

On 11/03/2016, 4:23 PM, "Davey Song(宋林健)" <ljsong at biigroup.cn> wrote:

>Sorry but I have more question.
>If there is still non-trivial volume of traffic to L root after 6 month,
>what should L-root operator do?

The L-root operator (ICANN) will stop serving from the old IPv6 address.
It's well past time we stopped treating resolver operators like children.

>Is there any way to tell how much (percentage ) onetime resolvers change
>to new address ? 

I'm not clear on what you are asking.  What is a "onetime" resolver?

A resolver that only uses L-root once? something else? (and given the way
DNS operates a real resolver could still only use L-root once as it finds
a better RTT to another root server operator.

>Is there any evidence or experience to tell the traffic is generated by
>real resolver or scanning/monitoring system.

That depends what people are monitoring for, and how.


>发件人: dns-operations [mailto:dns-operations-bounces at dns-oarc.net] 代表 Terry
>发送时间: 2016年3月11日 12:13
>收件人: Yasuhiro Orange Morishita / 森下泰宏; Mauricio Vergara
>抄送: dns-operations at dns-oarc.net
>主题: Re: [dns-operations] L-Root IPv6 Address renumbering
>Hi Yasuhiro,
>The existing IPv6 address will be kept in service for at least another 6
>months after the transition or when we see less than 1 valid DNS query
>per second. Which ever occurs first.
>On 11/03/2016, 12:31 AM, "dns-operations on behalf of Yasuhiro Orange
>Morishita / 森下泰宏" <dns-operations-bounces at dns-oarc.net on behalf of
>yasuhiro at jprs.co.jp> wrote:
>>A question: How long will the old IPv6 address continue the L-Root
>>service after the change?
>>-- Orange
>>Yasuhiro 'Orange' Morishita
>>Japan Registry Services Co., Ltd. (JPRS)
>>From: Mauricio Vergara <mauricio.vergara at icann.org>
>>Date: Wed, 9 Mar 2016 21:29:38 +0000
>>> This is an advance notice that there is a scheduled change to the
>>> IPv6 addresses in the DNS Root Zone for the L root-server, also known
>>> as L.ROOT-SERVERS.NET, which is administered by ICANN.
>>> The current IP addresses for the L.ROOT-SERVERS.NET service are:
>>> 2001:500:3::42
>>> As of March 23, 2016; the new IP addresses for the L.ROOT-SERVERS.NET
>>> service will be:
>>> 2001:500:9f::42
>>> The change will be implemented on the root zone on March 23, 2016
>>> 2100UTC,  however the new address is already operational.
>>> We encourage DNS infrastructure operators to update their DNS
>>> resolvers root "hints² files ASAP.
>>> New hints files will be available at the usual URLs once the change
>>> has been formally executed on March 23, 2016:
>>> http://www.internic.net/domain/named.root
>>> http://www.internic.net/domain/named.cache
>>> --
>>> Mauricio Vergara Ereche
>>> Lead DNS Engineer
>>> Los Angeles, CA
>>dns-operations mailing list
>>dns-operations at lists.dns-oarc.net
>>dns-jobs mailing list
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