IN-ADDR.ARPA Nameserver Change Complete

Joe Abley joe.abley at icann.org
Thu Mar 24 12:49:01 CDT 2011


IN-ADDR.ARPA NAMESERVER CHANGE COMPLETE

This is a courtesy notification of the completion of a change to
the nameserver set for the IN-ADDR.ARPA zone.

There is no expected impact on the functional operation of the DNS
due to this change.

There are no actions required by DNS server operators or end users.

For more information about this work, please see
<http://in-addr-transition.icann.org/>.

DETAIL

The IN-ADDR.ARPA zone is used to provide reverse mapping (number
to name) for IPv4. The servers which now provide authoritative DNS
service for the IN-ADDR.ARPA zone are as follows:

  A.IN-ADDR-SERVERS.ARPA (operated by ARIN)
  B.IN-ADDR-SERVERS.ARPA (operated by ICANN)
  C.IN-ADDR-SERVERS.ARPA (operated by AfriNIC)
  D.IN-ADDR-SERVERS.ARPA (operated by LACNIC)
  E.IN-ADDR-SERVERS.ARPA (operated by APNIC)
  F.IN-ADDR-SERVERS.ARPA (operated by RIPE NCC)

All root servers dropped the IN-ADDR.ARPA zone according to the
schedule posted earlier, and all root servers now respond to queries
under IN-ADDR.ARPA with an appropriate referral.

Note that as part of this transition, the IN-ADDR.ARPA zone is now
signed with DNSSEC and a complete chain of trust now exists from
the root zone to the IN-ADDR.ARPA zone. IP6.ARPA, the corresponnding
zone for IPv6 reverse mapping, was signed similarly some time ago.

Regards,


Joe Abley
Director DNS Operations
ICANN




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