RFC 4861, "Neighbor Discovery for IP version 6 (IPv6)", September 2007

Note: This RFC has been updated by RFC 5942, RFC 6980, RFC 7048, RFC 7527, RFC 7559, RFC 8028, RFC 8319, RFC 8425, RFC 9131

Errata ID: 8055
Status: Reported
Type: Technical
Publication Format(s) : TEXT
Reported By: Richard Patterson
Date Reported: 2024-07-29

Section 4.2 says:

Note: If neither M nor O flags are set, this indicates that no information is available via DHCPv6.

It should say:

Note: If neither M nor O flags are set, this indicates that no information is available via DHCPv6 from the router, or from other nodes that the router has been made aware of.

Notes:

M=0 does not prevent a node from attempting DHCPv6.

The router cannot definitively know that no other DHCPv6 servers exist.

RFC 8415 does not require M=1, with §18 providing other examples that may trigger a DHCP exchange.

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