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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, RFC 9685, RFC 9762

Source of RFC: ipv6 (int)

Errata ID: 2797
Status: Held for Document Update
Type: Technical
Publication Format(s) : TEXT

Reported By: Alin Năstac
Date Reported: 2011-05-05
Held for Document Update by: Brian Haberman

Section Appendix C says:

!INCOMPLETE     NA, Solicited=1,        -                   REACHABLE
                Override=0
                Same link-layer
                address as cached
                or no link-layer 
                address

It should say:

PROBE           NA, Solicited=1,        -                   REACHABLE
                Override=0
                Same link-layer
                address as cached
                or no link-layer 
                address

Notes:

NA having Solicited=1 are supposed to confirm two-way connectivity. In order to prove that, NA transmission has to be triggered by an NS sent by local host. Since {REACHABLE,STALE,DELAY} states deny that local host has sent a NS (they're sent only in INCOMPLETE or PROBE states), receiving a NA with Solicited=1 cannot verify 2-way connectivity, therefore it should be ignored.

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