[dns-operations] Advisory — D-root is changing its IPv4 address on the 3rd of January.

Sebastian Castro sebastian at nzrs.net.nz
Fri Dec 14 18:01:51 UTC 2012

Hash: SHA1

On 14/12/12 11:54, Jason Castonguay wrote:

Hi Jason,

> Advisory — D-root is changing its IPv4 address on the 3rd of
> January.
> This is advance notice that there is a scheduled change to the
> IPv4 address for one of the authorities listed for the DNS root
> zone and the .ARPA TLD. The change is to D.ROOT-SERVERS.NET, which
> is administered by the University of Maryland.
> The new IPv4 address for this authority is

Have you spoken with OS distributors in order to have this change
included in their patch management system? That will make the
transition a little bit better.

Also, do you have plans to capture traffic on a regular basis to keep
track of the transition process? More than a few researchers lurking
on this list will be very interested on that data :)

I'll pass your notification to the New Zealand Community.

> The current IPv6 address for this authority is  2001:500:2d::d and
> it will continue to remain unchanged.
> This change is anticipated to be implemented in the root zone on 3 
> January 2013, however the new address is currently operational. It 
> will replace the previous IP address of (also once
> known as TERP.UMD.EDU).
> We encourage operators of DNS infrastructure to update any
> references to the old IP address, and replace it with the new
> address. In particular, many DNS resolvers have a DNS root “hints”
> file. This should be updated with the new IP address.
> New hints files will be available at the following URLs once the 
> change has been formally executed:
> http://www.internic.net/domain/named.root
> http://www.internic.net/domain/named.cache
> The old address will continue to work for at least six months
> after the transition, but will ultimately be retired from service.

Kind Regards,
- -- 
Sebastian Castro
DNS Specialist
.nz Registry Services (New Zealand Domain Name Registry Limited)
desk: +64 4 495 2337
mobile: +64 21 400535
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