nanog mailing list archives

RE: IPv6 automatic reverse DNS


From: "White, Andrew" <Andrew.White2 () charter com>
Date: Sat, 29 Oct 2016 13:43:05 +0000

Thanks for the clarification, Wes.

Has anyone proposed the method of publishing v6 PTRs on-the-fly as addresses are observed passing through an ISP's 
router?

Andrew


Ληdrеw Whiте
Charter Network Operations - DAS DNS
Desk: 314-394-9594 ? Cell: 314-452-4386
andrew.white2 () charter com


-----Original Message-----
From: Wesley George [mailto:wesgeorge () puck nether net] 
Sent: Saturday, October 29, 2016 7:41 AM
To: White, Andrew
Cc: Steve Atkins; NANOG list
Subject: Re: IPv6 automatic reverse DNS


On Oct 28, 2016, at 11:03 PM, White, Andrew <Andrew.White2 () charter com> wrote:

There are two competing drafts for synthetic rule-based PTR responses for IPv6 rDNS:

Howard Lee, Time Warner Cable (now Charter)
https://tools.ietf.org/html/draft-howard-isp-ip6rdns-08

J. Woodworth, CenturyLink
https://datatracker.ietf.org/doc/draft-woodworth-bulk-rr/


At the risk of getting into IETF administrivia, a little clarification is important here: The first draft you mention 
above was replaced by the draft I referenced in my previous email. It is currently an adopted WG draft in DNSOP, moving 
toward working group last call as a consensus document., thus the window for capturing and incorporating feedback is 
closing soon. The second document does not appear to be associated with any IETF Working Group yet, but it also isn't 
competing with the first document. The first draft is informational status, discussing the issues and considerations 
surrounding this problem, of which generating on-the-fly reverse records is one possible solution. The second draft is 
a proposed standard defining *how* to generate those on-the-fly reverse records assuming one decides that is the right 
path to take in one's network, and would dovetail nicely via reference to section 2.5 of isp-ip6-rdns.

Wes George


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