RFC Errata
RFC 5954, "Essential Correction for IPv6 ABNF and URI Comparison in RFC 3261", August 2010
Source of RFC: sip (rai)
Errata ID: 4929
Status: Reported
Type: Editorial
Publication Format(s) : TEXT
Reported By: David van Moolenbroek
Date Reported: 2017-02-08
Section 3.1 says:
Because the <hexpart> production rule is defined such that two of its alternatives already include the "::" token, this may yield to the faulty construction of an IPv6-mapped IPv4 address with an extra colon when expanding those alternatives.
It should say:
Because the <hexpart> production rule is defined such that two of its alternatives already include the "::" token, this may yield to the faulty construction of an IPv4-mapped IPv6 address with an extra colon when expanding those alternatives.
Notes:
The text refers to an IPv6 address, and thus should use the proper term "IPv4-mapped IPv6 address," in line with the section title, the rest of the document, and (in particular) RFC 4291.