RFC 7599, "Mapping of Address and Port using Translation (MAP-T)", July 2015

Errata ID: 5225
Status: Verified
Type: Technical
Publication Format(s) : TEXT
Reported By: Ole Troan
Date Reported: 2018-01-03
Verifier Name: Éric Vyncke
Date Verified: 2020-01-08

Section 6 says:

In the case of an IPv4 prefix, the IPv4 address field is right-padded
with zeros up to 32 bits.  The PSID is left-padded with zeros to
create a 16-bit field.  For an IPv4 prefix or a complete IPv4
address, the PSID field is zero.

It should say:

The PSID is left-padded with zeros to
create a 16-bit field.  For an IPv4 prefix or a complete IPv4
address, the PSID field is zero.

Notes:

This text has been copied from RFC7597 (MAP-E). While it is correct in the context of MAP-E, for MAP-T the complete IPv4 source address must be embedded in the interface-identifier for correct translation in the case of an IPv4 prefix. Right padding the prefix with zeroes would lead to the translated packet having all zeroes in its source address.

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