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

Davey Song(宋林健) ljsong at biigroup.cn
Fri Mar 11 06:23:56 UTC 2016

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? Is there any way to tell how much (percentage ) onetime resolvers change to new address ? Is there any evidence or experience to tell the traffic is generated by real resolver or scanning/monitoring system.

发件人: dns-operations [mailto:dns-operations-bounces at dns-oarc.net] 代表 Terry Manderson
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
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