Re: [5gangip] Fwd: New Version Notification for draft-nordmark-id-loc-privacy-00.txt
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From: Dirk.von-Hugo@telekom.de
To: sarikaya@ieee.org, nordmark@acm.org
CC: 5gangip@ietf.org
Thread-Topic: [5gangip] Fwd: New Version Notification for draft-nordmark-id-loc-privacy-00.txt
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Archived-At: <https://mailarchive.ietf.org/arch/msg/5gangip/cuYgcSjf_al46ESU3YRvsALwkZc>
Subject: Re: [5gangip] Fwd: New Version Notification for draft-nordmark-id-loc-privacy-00.txt
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Hi Behcet, Erik, see my comment inline. Thanks! Best Regards Dirk From: 5gangip [mailto:5gangip-bounces@ietf.org] On Behalf Of Behcet Sarikaya Sent: Mittwoch, 4. Juli 2018 18:11 To: Erik Nordmark <nordmark@acm.org> Cc: 5GANGIP <5gangip@ietf.org> Subject: Re: [5gangip] Fwd: New Version Notification for draft-nordmark-id-loc-privacy-00.txt Hi Erik, My comments on your draft: a mobile device which is using typical cellular network technologies end up with an IP address, at least as seen by remote peers outside of the cellular network, which is associated with the cellular operator but does not necessarily indicate a particular location of the mobile device. Is this correct? IP address assigned by a cellular network would not indicate a particular location? DH> AFAIK for the time being (3G/4G) the device receives the IP address from the GGSN/P-GW with typically only some handful of locations per dozens of millions subscribers … that will change with 5G and foreseen distributed UPFs and is also different with WiFi APs Thus we believe that we can explore the core of the ID/locator privacy issue by looking at long-lived identifiers. wholeheartedly concur. If a third party can at any time determine the IP location of some identifier, then the device can at one point be IP geolocated at home, and later a coffee shop. What is IP location? is it IP address? I think that the above sentence is correct because the identifiers are carried in the clear in packet headers which is not mentioned in the draft. If this is the case, then the ID/locator mapping system can provide access control so that only those trusted devices can access the mappings. The above quote from Sec. 5.1. first paragraph is a very good observation, agreed. Today such location sharing happens at an application layer using GPS coordinates. But while such sharing is in effect, it wouldn't be unreasonable to also consider sharing IP locators to make it more efficient or more robust to e.g., route a video feed from one device to another. The above helps clarify why IP level solution is needed. 5.3. Business Assets Sec. 5.3 gives some IoT context which was missing. The draft has a number of typos and I am going to communicate them to the author separately.. Also I send the mail to one list, you may forward it to your favorite list if you wish. Behcet On Mon, Jul 2, 2018 at 5:42 PM, Erik Nordmark <nordmark@acm.org<mailto:nordmark@acm.org>> wrote: This is a rough draft, but hopefully it can stimulate more discussion around privacy considerations. -------- Forwarded Message -------- Subject: New Version Notification for draft-nordmark-id-loc-privacy-00..txt Date: Mon, 02 Jul 2018 15:34:11 -0700 From: internet-drafts@ietf.org<mailto:internet-drafts@ietf.org> To: Erik Nordmark <nordmark@sonic.net<mailto:nordmark@sonic.net>> A new version of I-D, draft-nordmark-id-loc-privacy-00.txt has been successfully submitted by Erik Nordmark and posted to the IETF repository. Name: draft-nordmark-id-loc-privacy Revision: 00 Title: Privacy issues in ID/locator separation systems Document date: 2018-07-02 Group: Individual Submission Pages: 6 URL: https://www.ietf.org/internet-drafts/draft-nordmark-id-loc-privacy-00.txt Status: https://datatracker.ietf.org/doc/draft-nordmark-id-loc-privacy/ Htmlized: https://tools.ietf.org/html/draft-nordmark-id-loc-privacy-00 Htmlized: https://datatracker.ietf.org/doc/html/draft-nordmark-id-loc-privacy Abstract: There exists several protocols and proposals for identifier/locator split which have some form of control plane by which participating nodes can use to share their current id to locator information with their peers. This document explores some of the privacy considerations for such a system. Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org<http://tools.ietf.org>. The IETF Secretariat _______________________________________________ 5gangip mailing list 5gangip@ietf.org<mailto:5gangip@ietf.org> https://www.ietf.org/mailman/listinfo/5gangip
- [5gangip] Fwd: New Version Notification for draft… Erik Nordmark
- Re: [5gangip] Fwd: New Version Notification for d… Jon Crowcroft
- Re: [5gangip] Fwd: New Version Notification for d… Jon Crowcroft
- Re: [5gangip] Fwd: New Version Notification for d… Tom Herbert
- Re: [5gangip] Fwd: New Version Notification for d… Jon Crowcroft
- Re: [5gangip] [DMM] Fwd: New Version Notification… Behcet Sarikaya
- Re: [5gangip] Fwd: New Version Notification for d… Tom Herbert
- Re: [5gangip] Fwd: New Version Notification for d… Behcet Sarikaya
- Re: [5gangip] Fwd: New Version Notification for d… Dirk.von-Hugo