RFC 4282, "The Network Access Identifier", December 2005
Note: This RFC has been obsoleted by RFC 7542Source of RFC: radext (ops)
See Also: RFC 4282 w/ inline errata
Errata ID: 757
Publication Format(s) : TEXT
Reported By: Peter Koch
Date Reported: 2005-12-13
Verifier Name: Dan Romascanu
Date Verified: 2009-09-09
Section 2.6 says:
The BNF of the realm portion allows the realm to begin with a digit, which is not permitted by the BNF described in [RFC1035]. This change was made to reflect current practice; although not permitted by the BNF described in [RFC1035], Fully Qualified Domain Names (FQDNs) such as 3com.com are commonly used and accepted by current software.
It should say:
section 2.6 missed the update of the hostname syntax in
RFC 1123, section 2.1.
RFC 1123 (STD 3) 2.1 allows labels starting with a <digit>
in fully qualified domain names of a host, RFC 1035 (STD 13)
2.3.1 still wants labels starting with a <letter>.