RFC 4862, "IPv6 Stateless Address Autoconfiguration", September 2007

Note: This RFC has been updated by RFC 7527, RFC 9762

Errata ID: 7509
Status: Held for Document Update
Type: Technical
Publication Format(s) : TEXT
Reported By: Jonathan Johnson
Date Reported: 2023-05-05
Held for Document Update by: Erik Kline
Date Held: 2025-10-18

Section 5.3 says:

A link-local address is formed by combining the well-known link-local prefix FE80::0 [RFC4291] (of appropriate length) with an interface identifier as follows:

It should say:

A link-local address is formed by combining the well-known link-local prefix FE80::/10 [RFC4291] (of appropriate length) with an interface identifier as follows:

Notes:

The prefix text should be in CIDR notation, as the referenced RFC4921 sec. 2.4 lists it in CIDR notation. Further, FE80::0 describes an address, not a prefix.

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