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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: 6218
Status: Verified
Type: Technical
Publication Format(s) : TEXT, PDF, HTML

Reported By: Brian Wellington
Date Reported: 2020-07-01
Verifier Name: Warren Kumari (Ops AD)
Date Verified: 2020-07-17

Section 4.3.2 says:

10   IN TYPE260  \# (
       18 ; length
       0a ; precedence=10
       02 ; D=0, relay type=2, an IPv6 address
       20010db800000000000000000000000f ) ; 2001:db8::15
10   IN TYPE260  \# (
       24 ; length
       80 ; precedence=128
       83 ; D=1, relay type=3, a wire-encoded domain name
       09616d7472656c617973076578616d706c6503636f6d ) ; domain name

It should say:

10   IN TYPE260  \# (
       18 ; length
       0a ; precedence=10
       02 ; D=0, relay type=2, an IPv6 address
       20010db8000000000000000000000015 ) ; 2001:db8::15
10   IN TYPE260  \# (
       25 ; length
       80 ; precedence=128
       83 ; D=1, relay type=3, a wire-encoded domain name
       09616d7472656c617973076578616d706c6503636f6d00 ) ; domain name

Notes:

In the first example, the IPv6 address is incorrectly encoded.

In the second example, the trailing root label of the domain name was not included, and should be. This also increases the length by 1 byte.

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