RFC 6761, "Special-Use Domain Names", February 2013

Errata ID: 5039
Status: Held for Document Update
Type: Editorial
Publication Format(s) : TEXT
Reported By: Walter H.
Date Reported: 2017-06-12
Held for Document Update by: Warren Kumari
Date Held: 2017-06-12

Section 6.1 says:

   The private-address [RFC1918] reverse-mapping domains listed below,
   and any names falling within those domains, are Special-Use Domain
   Names:

     10.in-addr.arpa.      21.172.in-addr.arpa.  26.172.in-addr.arpa.
     16.172.in-addr.arpa.  22.172.in-addr.arpa.  27.172.in-addr.arpa.
     17.172.in-addr.arpa.  30.172.in-addr.arpa.  28.172.in-addr.arpa.
     18.172.in-addr.arpa.  23.172.in-addr.arpa.  29.172.in-addr.arpa.
     19.172.in-addr.arpa.  24.172.in-addr.arpa.  31.172.in-addr.arpa.
     20.172.in-addr.arpa.  25.172.in-addr.arpa.  168.192.in-addr.arpa.

It should say:

   The private-address [RFC1918] reverse-mapping domains listed below,
   and any names falling within those domains, are Special-Use Domain
   Names:

     10.in-addr.arpa.      21.172.in-addr.arpa.  27.172.in-addr.arpa.
     16.172.in-addr.arpa.  22.172.in-addr.arpa.  28.172.in-addr.arpa.
     17.172.in-addr.arpa.  23.172.in-addr.arpa.  29.172.in-addr.arpa.
     18.172.in-addr.arpa.  24.172.in-addr.arpa.  30.172.in-addr.arpa.
     19.172.in-addr.arpa.  25.172.in-addr.arpa.  31.172.in-addr.arpa.
     20.172.in-addr.arpa.  26.172.in-addr.arpa.  168.192.in-addr.arpa.

Notes:

the original list is not correctly ordered, therefore is Errata-ID 5025 obsolete: this said that 30.172.in-addr.arpa. were missing in the original list.

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