The following errata report has been verified for RFC7788,
"Home Networking Control Protocol". 

--------------------------------------
You may review the report below and at:
https://www.rfc-editor.org/errata/eid5113

--------------------------------------
Status: Verified
Type: Technical

Reported by: Denis Ovsienko <de...@ovsienko.info>
Date Reported: 2017-09-13
Verified by: Eric Vyncke (IESG)

Section: 10

Original Text
-------------
10.2.2.  DHCPv6-Data TLV

    0                   1                   2                   3
    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |    Type: DHCPv6-Data (37)     |          Length: > 0          |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

[...]

10.2.3.  DHCPv4-Data TLV

    0                   1                   2                   3
    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |     Type: DHCPv4-Data (38)    |          Length: > 0          |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


Corrected Text
--------------
10.2.2.  DHCPv6-Data TLV

    0                   1                   2                   3
    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |    Type: DHCPv6-Data (38)     |          Length: > 0          |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

[...]

10.2.3.  DHCPv4-Data TLV

    0                   1                   2                   3
    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |     Type: DHCPv4-Data (37)    |          Length: > 0          |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


Notes
-----
Section 13 (IANA Considerations) of the document says:

      37: DHCPv4-Data

      38: DHCPv6-Data

Those code points from Section 13 are in the "HNCP TLV Types" IANA registry as 
well as in the current source code of shncpd and tcpdump. The code points shown 
in Sections 10.2.2 and 10.2.3 were likely swapped by mistake.

-- Verifier note --
The IANA registry for HNCP TLV types 
(https://www.iana.org/assignments/dncp-registry/dncp-registry.xhtml#hncp-tlv-types)
 has indeed 37 for DHCPv4 and the open source SHNCPD has the same 
https://github.com/jech/shncpd/blob/master/receive.c


--------------------------------------
RFC7788 (draft-ietf-homenet-hncp-10)
--------------------------------------
Title               : Home Networking Control Protocol
Publication Date    : April 2016
Author(s)           : M. Stenberg, S. Barth, P. Pfister
Category            : PROPOSED STANDARD
Source              : Home Networking
Area                : Internet
Stream              : IETF
Verifying Party     : IESG

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