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RFC 8777, "DNS Reverse IP Automatic Multicast Tunneling (AMT) Discovery", April 2020

Source of RFC: mboned (ops)
See Also: RFC 8777 w/ inline errata

Errata ID: 6688
Status: Verified
Type: Technical
Publication Format(s) : TEXT, PDF, HTML

Reported By: Dick Franks
Date Reported: 2021-09-19
Verifier Name: Warren Kumari (Ops AD)
Date Verified: 2021-10-05

Section 5 says:

   +-------+---------------------------------------+
   | 3     | A wire-encoded domain name is present |
   +-------+---------------------------------------+
   | 4-255 | Unassigned                            |
   +-------+---------------------------------------+

      Table 2: Initial Contents of the "Relay Type
                    Field" Registry

   Values 0, 1, 2, and 3 are further explained in Sections 4.2.3 and
   4.2.4.  Relay type numbers 4 through 255 can be assigned with a
   policy of Specification Required (as described in [RFC8126]).

It should say:

   +-------+---------------------------------------+
   | 3     | A wire-encoded domain name is present |
   +-------+---------------------------------------+
   | 4-127 | Unassigned                            |
   +-------+---------------------------------------+

      Table 2: Initial Contents of the "Relay Type
                    Field" Registry

   Values 0, 1, 2, and 3 are further explained in Sections 4.2.3 and
   4.2.4.  Relay type numbers 4 through 127 can be assigned with a
   policy of Specification Required (as described in [RFC8126]).

Notes:

Relay Type is a 7 bit field, the MS bit of the wire-format octet contains the D-bit.

[Update: 2021-10-05 - AD: Confirmed that you can't fit 8 bits into a 7 bit field - see: https://mailarchive.ietf.org/arch/msg/mboned/cdzHm6Uxwuua5zsOONHtK-RmdU8/ ]

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