I concur with Bob: bits (including the ones in the first octet) are numbered starting from 0 and the X bit (formerly called the Local/Global bit – see section 2.1.1 of RFC 9542) is the bit number 6.
I.e., this errata should be rejected (thanks Anvar for your interest in the document though) Regards -éric From: Bob Hinden <[email protected]> Date: Wednesday, 25 September 2024 at 01:45 To: RFC Editor <[email protected]> Cc: Fernando Gont <[email protected]>, [email protected] <[email protected]>, Warren Kumari <[email protected]>, [email protected] <[email protected]>, [email protected] <[email protected]>, [email protected] <[email protected]> Subject: [OPSEC]Re: [Technical Errata Reported] RFC7707 (8119) Hi, I don’t think this errata is correct. Looking at RFC4291 "Appendix A: Creating Modified EUI-64 Format Interface Identifiers” the bits in IEEE EUI-64 Identifiers are numbered starting from 00. The only change needed to transform an IEEE EUI-64 identifier to an interface identifier is to invert the "u" (universal/local) bit. An example is a globally unique IEEE EUI-64 identifier of the form: |0 1|1 3|3 4|4 6| |0 5|6 1|2 7|8 3| +----------------+----------------+----------------+----------------+ |cccccc0gcccccccc|ccccccccmmmmmmmm|mmmmmmmmmmmmmmmm|mmmmmmmmmmmmmmmm| +----------------+----------------+----------------+----------------+ The original text is correct. Bob > On Sep 24, 2024, at 3:33 PM, RFC Errata System <[email protected]> > wrote: > > The following errata report has been submitted for RFC7707, > "Network Reconnaissance in IPv6 Networks". > > -------------------------------------- > You may review the report below and at: > https://www.rfc-editor.org/errata/eid8119 > > -------------------------------------- > Type: Technical > Reported by: Anvar Durmanov <[email protected]> > > Section: 4.1.1.1 > > Original Text > ------------- > 1. The "Universal" bit (bit 6, from left to right) of the address is set to > 1. > > Corrected Text > -------------- > 1. The "Universal" bit (bit 7, from left to right) of the address is set to > 1. > > Notes > ----- > The "Universal" bit is the bit #7 and not the bit #6. > > Instructions: > ------------- > This erratum is currently posted as "Reported". (If it is spam, it > will be removed shortly by the RFC Production Center.) Please > use "Reply All" to discuss whether it should be verified or > rejected. When a decision is reached, the verifying party > will log in to change the status and edit the report, if necessary. > > -------------------------------------- > RFC7707 (draft-ietf-opsec-ipv6-host-scanning-08) > -------------------------------------- > Title : Network Reconnaissance in IPv6 Networks > Publication Date : March 2016 > Author(s) : F. Gont, T. Chown > Category : INFORMATIONAL > Source : Operational Security Capabilities for IP Network > Infrastructure > Stream : IETF > Verifying Party : IESG > > _______________________________________________ > OPSEC mailing list -- [email protected] > To unsubscribe send an email to [email protected]
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