Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-whitelisting-implications-08.txt> (Considerations for Transitioning Content to IPv6) to Informational RFC
Ronald Bonica <rbonica@juniper.net> Tue, 21 February 2012 13:46 UTC
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From: Ronald Bonica <rbonica@juniper.net>
To: Marc Lampo <marc.lampo@eurid.eu>, "EXT - joelja@bogus.com" <joelja@bogus.com>
Date: Tue, 21 Feb 2012 08:44:11 -0500
Thread-Topic: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-whitelisting-implications-08.txt> (Considerations for Transitioning Content to IPv6) to Informational RFC
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References: <20120201150911.25955.80172.idtracker@ietfa.amsl.com> <017501ccefdc$68025a50$38070ef0$@lampo@eurid.eu> <4F42C1E6.7010606@bogus.com> <13205C286662DE4387D9AF3AC30EF456D7671A227B@EMBX01-WF.jnpr.net> <008301ccf066$c7b96c10$572c4430$@lampo@eurid.eu>
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Subject: Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-whitelisting-implications-08.txt> (Considerations for Transitioning Content to IPv6) to Informational RFC
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Authors, What do you think? Ron > -----Original Message----- > From: Marc Lampo [mailto:marc.lampo@eurid.eu] > Sent: Tuesday, February 21, 2012 2:03 AM > To: Ronald Bonica; EXT - joelja@bogus.com > Cc: v6ops@ietf.org > Subject: RE: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-whitelisting- > implications-08.txt> (Considerations for Transitioning Content to IPv6) > to Informational RFC > > Hello, > > I had assumed : 1 zone file (and Mark Andrews correctly pointed at > "views"). > > Would adding this piece of information, directly in the RFC, > be useful to avoid confusion for future readers ? > > Thanks and kind regards, > > Marc Lampo > > > -----Original Message----- > From: Ronald Bonica [mailto:rbonica@juniper.net] > Sent: 20 February 2012 11:55 PM > To: EXT - joelja@bogus.com; Marc Lampo > Cc: v6ops@ietf.org > Subject: RE: [v6ops] Last Call: > <draft-ietf-v6ops-v6-aaaa-whitelisting-implications-08.txt> > (Considerations for Transitioning Content to IPv6) to Informational RFC > > Marc, Havard, > > Are you satisfied with the answers provided by Joel and Mark? > > Ron > > > > -----Original Message----- > > From: v6ops-bounces@ietf.org [mailto:v6ops-bounces@ietf.org] On > Behalf > > Of EXT - joelja@bogus.com > > Sent: Monday, February 20, 2012 4:58 PM > > To: Marc Lampo > > Cc: v6ops@ietf.org > > Subject: Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa- > whitelisting- > > implications-08.txt> (Considerations for Transitioning Content to > IPv6) > > to Informational RFC > > > > On 2/20/12 06:32 , Marc Lampo wrote: > > > Hello, > > > > > > (sorry to be late with my comments, bit overloaded on my side) > > > > > > 6.1 Security Considerations - paragraph 2 (on DNSSEC) > > > The text states : "there should not be any negative impact on > DNSSEC" > > > In my opinion, this is *wrong* : > > > > > > > IMHO the following applies. > > > > if you have one zone yeah I agree. > > > > If you have two zones one with aaaa and one without (assuming this is > > done with dns views style implementation) you can sign both and > they'll > > both be valid and complete from the vantage point of a client which > > resolves one or the other of them but not both. > > > > this is a traditional split horizon problem. it's just not > > inside/outside. > > > > joel > > > > > It is correct that, if an AAAA record exists (in a DNSSEC's zone), > > > the appropriate RRSIG will be known to authoritative NS's. > > > If, via white listing, the decision is taken not to present the > AAAA > > > record > > > (and its signature), this seems OK. > > > > > > However : not returning an AAAA record seems identical to : there > is > > no > > > AAAA record. > > > And that - there is no AAAA record - yields to "Next Secure" > changes > > ! > > > If no AAAA record exists, for a name, the corresponding NSEC > (NSEC3) > > > record > > > should not hold a reference to AAAA. > > > But if that AAAA record does exist, the authoritative NS will have > > NSEC > > > (NSEC3) > > > data that shows so. > > > > > > A DNSSEC query (ENDS0 + DO set) for AAAA (and the AAAA exists but > due > > to > > > whitelisting > > > will not be returned), cannot be proven by accompanying (and > > required) > > > NSEC (NSEC3) > > > information. > > > Hence : this draft will/might make DNSSEC validating name servers > > fail. > > > > > > > > > If you look at 4.3.1.1 (Description of DNS Resolver Whitelisting) > in > > > detail, > > > please observe : > > > 1) the caching name server (and "stub resolver") ask 2 queries > > > (there is only one line, > > > but it are two queries : one for "A", one for "AAAA") > > > 2) if the caching name server (or stub resolver) performs DNSSEC > > > validation, > > > it will never accept a reply of "NODATA" to the query of AAAA > > > (because the NSEC (NSEC3) information will not prove that > > > non-existance) > > > ((and the validating name server will repeat the query to all > > > authoritative NS's, looking for a validatable answer)) > > > > > > (the final result, to the user might be that only the A record is > > useable > > > - mission accomplished ? > > > But the side effect will be that validating caching name servers > > will hit > > > *all* authoritative servers for the domain, > > > "in search of" a correctly validating answer.) > > > > > > So, while for the end-user, the result might be identical, > > > one "security impact" of this approach is > > > additional (useless) DNS traffic and > > > additional load on authoritative NS's (that implement whitelisting) > > > > > > > > > Kind regards, > > > > > > Marc Lampo > > > Security Officer > > > EURid > > > > > > > > > -----Original Message----- > > > From: The IESG [mailto:iesg-secretary@ietf.org] > > > Sent: 01 February 2012 04:09 PM > > > To: IETF-Announce > > > Cc: v6ops@ietf.org > > > Subject: [v6ops] Last Call: > > > <draft-ietf-v6ops-v6-aaaa-whitelisting-implications-08.txt> > > > (Considerations for Transitioning Content to IPv6) to Informational > > RFC > > > > > > > > > The IESG has received a request from the IPv6 Operations WG (v6ops) > > to > > > consider the following document: > > > - 'Considerations for Transitioning Content to IPv6' > > > <draft-ietf-v6ops-v6-aaaa-whitelisting-implications-08.txt> as an > > > Informational RFC > > > > > > The IESG plans to make a decision in the next few weeks, and > solicits > > > final comments on this action. Please send substantive comments to > > the > > > ietf@ietf.org mailing lists by 2012-02-15. Exceptionally, comments > > may be > > > sent to iesg@ietf.org instead. In either case, please retain the > > > beginning of the Subject line to allow automated sorting. > > > > > > Abstract > > > > > > > > > This document describes considerations for the transition of end > > user > > > content on the Internet to IPv6. While this is tailored to > > address > > > end user content, which is typically web-based, many aspects of > > this > > > document may be more broadly applicable to the transition to > IPv6 > > of > > > other applications and services. This document explores the > > > challenges involved in the transition to IPv6, potential > migration > > > tactics, possible migration phases, and other considerations. > The > > > audience for this document is the Internet community generally, > > > particularly IPv6 implementers. > > > > > > > > > > > > > > > The file can be obtained via > > > http://datatracker.ietf.org/doc/draft-ietf-v6ops-v6-aaaa- > > whitelisting-impl > > > ications/ > > > > > > IESG discussion can be tracked via > > > http://datatracker.ietf.org/doc/draft-ietf-v6ops-v6-aaaa- > > whitelisting-impl > > > ications/ > > > > > > > > > No IPR declarations have been submitted directly on this I-D. > > > > > > > > > > > > _______________________________________________ > > > v6ops mailing list > > > v6ops@ietf.org > > > https://www.ietf.org/mailman/listinfo/v6ops > > > > > > > _______________________________________________ > > v6ops mailing list > > v6ops@ietf.org > > https://www.ietf.org/mailman/listinfo/v6ops
- [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-whit… The IESG
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Erik Kline
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Tina TSOU
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Fred Baker
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Erik Kline
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Lorenzo Colitti
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Joel jaeggli
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Fred Baker
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Mark Andrews
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Lorenzo Colitti
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Joel jaeggli
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Livingood, Jason
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Marc Lampo
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Ronald Bonica
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Havard Eidnes
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Mark Andrews
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Joel jaeggli
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Mark Andrews
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Ronald Bonica
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Marc Lampo
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Lorenzo Colitti
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Ronald Bonica
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Livingood, Jason
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Livingood, Jason
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Livingood, Jason
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Ronald Bonica
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Livingood, Jason
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Marc Lampo
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Havard Eidnes
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Havard Eidnes
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Livingood, Jason
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Ronald Bonica
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Mark Andrews
- Re: [v6ops] Last Call: <draft-ietf-v6ops-v6-aaaa-… Livingood, Jason