[dns-operations] [16-31].172.in-addr.arpa and 168.192.in-addr.arpa no longer delegated

Chris Thompson cet1 at cam.ac.uk
Mon Apr 11 13:54:17 UTC 2011

On Apr 9 2011, Joe Abley wrote:

>On 2011-04-09, at 14:10, Chris Thompson wrote:
>> It used to be that the zones
>> 10.in-addr.arpa
>> 16.172.in-addr.arpa - 31.172.in-addr.arpa
>> 168.192.in-addr.arpa
>> were delegated to blackhole-1.iana.org & blackhole-2.iana.org as part
>> of the AS112 project.
>Responses from whois.arin.net (ARIN manages 172/8 and 192/8, at least as
>far as IN-ADDR.ARPA delegations are concerned) contain the right nameservers.
>I have dropped a note to ARIN to let them know that the delegations seem to
>have disappeared.

Well, that seems to have done the trick! Good to know that speaking softly
was enough and you didn't have to wield the big stick ...

BTW, I should credit Malcolm Scott <http://www.cl.cam.ac.uk/~mas90/> for
bringing the problem with "type forward"/"type stub" zone definitions to
my attention in the first place.

Chris Thompson               University of Cambridge Computing Service,
Email: cet1 at ucs.cam.ac.uk    New Museums Site, Cambridge CB2 3QH,
Phone: +44 1223 334715       United Kingdom.

More information about the dns-operations mailing list