Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rfc3315bis)
Lishan Li <lilishan48@gmail.com> Wed, 24 August 2016 03:39 UTC
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References: <92dcf2e0cf08452caa5861f7258ea6c5@XCH15-05-05.nw.nos.boeing.com> <201608121919.u7CJJqcS056876@givry.fdupont.fr> <c5303eef3c124228825f32a40f229107@XCH-ALN-003.cisco.com> <ccaff4d4cb5c4eefb05eee0660c2611c@XCH15-05-05.nw.nos.boeing.com> <f46aa91e4cfb41b29dd2d8186f5959f8@XCH-ALN-003.cisco.com> <ba1c8ff573d7466b8c437373e05f1023@XCH15-05-05.nw.nos.boeing.com> <b65e1dd66b634240b3ca164b2c04c20a@XCH15-05-05.nw.nos.boeing.com> <CAJE_bqfb5sxOpkTEXkwZXckKBWof7U1-W6EFzCHk7ijnMjpMMA@mail.gmail.com> <5ec83aaf4e76497aa4b4d465483bdcf5@XCH15-05-05.nw.nos.boeing.com> <CAJE_bqeKqEgLVC2ZZyUCjsrPP5_suRJ8en2NC+g13Q5PyQL1iw@mail.gmail.com> <30c9413c4662476096ef087ac88f6314@XCH-ALN-003.cisco.com> <dc9d2c300d574732a12f7f366f6223c0@XCH15-05-11.nw.nos.boeing.com> <3A5F0B79-8C76-4E82-97E9-FA63657DE6C3@cisco.com>
From: Lishan Li <lilishan48@gmail.com>
Date: Wed, 24 Aug 2016 11:39:44 +0800
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To: "Bernie Volz (volz)" <volz@cisco.com>
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Cc: "<dhcwg@ietf.org>" <dhcwg@ietf.org>, Francis Dupont <Francis.Dupont@fdupont.fr>, 神明達哉 <jinmei@wide.ad.jp>
Subject: Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rfc3315bis)
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Hi, Fred, In the Applicability part of secure DHCPv6, it is stated that: secure DHCPv6 is applicable in any environment where physical security on the link is not assured and attacks on DHCPv6 are a concern. In addition, after the discussion in Yokohama, we have reached a consensus that: Given the focus on pervasive monitoring, all encrypting is the correct direction. Best Regards, Lishan 2016-08-24 5:55 GMT+08:00 Bernie Volz (volz) <volz@cisco.com>: > My point is that we will need to develop a solution for this (i.e. > something like the referenced draft); not that this should change sedhcpv6 > work. > > Given the focus on pervasive monitoring, encrypting is the correct > direction. > > - Bernie (from iPhone) > > > On Aug 23, 2016, at 1:15 PM, Templin, Fred L <Fred.L.Templin@boeing.com> > wrote: > > > > Hi Bernie, > > > >> Note that encryption will cause significant issues for DOCSIS and > likely other deployments where the relay currently snoops the traffic. > > > > This is exactly the case for AERO, i.e., the relay snoops the traffic > which > > must be available in the clear. > > > > So, authentication-only is what is needed. And, it does not need to have > > anything added to the spec - only a relaxation of what is already there. > > > > Thanks - Fred > > fred.l.templin@boeing.com > > > >> -----Original Message----- > >> From: Bernie Volz (volz) [mailto:volz@cisco.com] > >> Sent: Friday, August 19, 2016 6:38 AM > >> To: 神明達哉 <jinmei@wide.ad.jp>; Templin, Fred L < > Fred.L.Templin@boeing.com> > >> Cc: <dhcwg@ietf.org> <dhcwg@ietf.org>; Francis Dupont < > Francis.Dupont@fdupont.fr> > >> Subject: RE: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rfc3315bis) > >> > >>> so not very convincing to overturn a wg consensus on always enabling > encryption > >> > >> Agreed. We held discussions with others (Randy Busy, etc.) and are > under the belief that what is there is in the right direction. This is > >> an overall solution to the DHCP security solution and tries to address > FULL security (as the traffic is encrypted - so it addresses privacy). > >> > >> I'm not sure if encryption harms anything in your environment; so what > harm is there to use it? > >> > >> Note that encryption will cause significant issues for DOCSIS and > likely other deployments where the relay currently snoops the traffic. > >> So, we'll need to address how to handle that (either dust of the > https://tools.ietf.org/html/draft-ietf-dhc-dhcpv6-agentopt-delegate > >> work or come up with something else). Until something else is in place, > those environments just can't make use of this capability. > >> > >> - Bernie > >> > >> -----Original Message----- > >> From: jinmei.tatuya@gmail.com [mailto:jinmei.tatuya@gmail.com] On > Behalf Of ???? > >> Sent: Thursday, August 18, 2016 6:54 PM > >> To: Templin, Fred L <Fred.L.Templin@boeing.com> > >> Cc: <dhcwg@ietf.org> <dhcwg@ietf.org>; Francis Dupont < > Francis.Dupont@fdupont.fr>; Bernie Volz (volz) <volz@cisco.com> > >> Subject: Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rfc3315bis) > >> > >> At Thu, 18 Aug 2016 22:42:38 +0000, > >> "Templin, Fred L" <Fred.L.Templin@boeing.com> wrote: > >> > >>> Hi, I already made a stronger case as follows: > >>> > >>>> I think what that means in terms of this draft is that for some use > cases all > >>>> that is needed is for the client to include a Signature option in its > DHCPv6 > >>>> messages to the server. The client does not need to include a > Certificate > >>>> option nor any encryption options. So, I would like it if the draft > could > >>>> include a simple "authentication only" mode of operation. > >> > >> To me, it just looks like "in some cases encryption may not be needed" > >> and not so different from "it's overkilling for me", so not very > >> convincing to overturn a wg consensus on always enabling encryption. > >> But it's ultimately up to the wg. > >> > >> -- > >> JINMEI, Tatuya > > _______________________________________________ > dhcwg mailing list > dhcwg@ietf.org > https://www.ietf.org/mailman/listinfo/dhcwg >
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Bernie Volz (volz)
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… 神明達哉
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Templin, Fred L
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… 神明達哉
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Templin, Fred L
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Templin, Fred L
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Bernie Volz (volz)
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Templin, Fred L
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Bernie Volz (volz)
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Francis Dupont
- [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rfc331… Templin, Fred L
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Templin, Fred L
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Bernie Volz (volz)
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Templin, Fred L
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Lishan Li
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Templin, Fred L
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Ted Lemon
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Templin, Fred L
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Ted Lemon
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Templin, Fred L
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Ted Lemon
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Ralph Droms (rdroms)
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Templin, Fred L
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Bernie Volz (volz)
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Templin, Fred L
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Templin, Fred L
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Bernie Volz (volz)
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Templin, Fred L
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Ted Lemon
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Templin, Fred L
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Ted Lemon
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Templin, Fred L
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Ted Lemon
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Bernie Volz (volz)
- Re: [dhcwg] Citing 'draft-ietf-dhc-secdhcpv6' (rf… Templin, Fred L