[atnog] H-root address change on December 1, 2015

Christian Panigl, UniVie/ACOnet/VIX Christian.Panigl at univie.ac.at
Fri Nov 27 16:59:38 CET 2015

Liebe AT Network Operators,

zur Info bzw Erinnerung:

am 1.12.2015 ändert H.ROOT-SERVERS.NET seine IPv4 und IPv6 Adresse (s.u.)

Beste Grüße
Christian Panigl

> =====
> This is advance notice that there is a scheduled change to the IP addresses
> for one of the authorities listed for the DNS root zone and the .ARPA TLD.
> The change is to H.ROOT-SERVERS.NET, which is administered by the U.S. Army
> Research Laboratory.
> The new IPv4 address for this authority is
> The new IPv6 address for the authority is 2001:500:1::53.
> This change is anticipated to be implemented in the root zone on 1 December
> 2015, however the new addresses are operational now. They will replace the
> previous IP addresses of and 2001:500:1::803f:235 (also
> previously known as AOS.BRL.MIL and AOS.ARL.ARMY.MIL).
> We encourage operators of DNS infrastructure to update any references to the
> old IP addresses and replace them with the new addresses. In particular,
> many DNS resolvers have a DNS root "hints" file. This should be updated with
> the new IP addresses.
> New hints files will be available at the following URLs once the change has
> been formally executed on December 1:
>  http://www.internic.net/domain/named.root
>  http://www.internic.net/domain/named.cache
> The old IPv4 address will continue to work for six months after the
> transition (until 1 June 2016), at which point it will be retired from
> service.  The address will remain under the control of the Army Research
> Laboratory, never to be used again for DNS service.  The old IPv6 address
> will continue to work indefinitely, but may ultimately be retired from
> service.
> Simultaneous to the retirement of the old address on June 1, 2016, the
> ASN for H-root will change from 13 to 1508.
> You can monitor the transition of queries to the new addresses at the
> following URL:
>  http://h.root-servers.org/old_vs_new.html
> --
> Howard Kash
> U.S. Army Research Laboratory
> -- 

More information about the atnog mailing list