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Re: September 3 - Teleconference details



Personally I think changing the MAC address during a session will
probably require the re-association of the terminal and
reconfiguration of all QoE and other services the terminals has
activated. I think it will also have some impact in other standards
relying on distribution of keys to authenticate the user such as IEEE
802.11r.

We need to clarify what are the scenarios where the MAC address need
to change during an association to an AP, the scenarios where the MAC
of the AP may change and the scenarios where the MAC of the terminal
changes while moving to an AP of the same network. Each of the
scenarios will have different implications most probably.

I also think that for the end user this will mean a short
disconnection but if its IP address does not change (this might not be
true in case SLAAC or DHCP with assigned IPs is used), everything will
continue working automagically.

My two cents

Br
Antonio

On Wed, Sep 3, 2014 at 5:51 PM, Paul Lambert <paul@xxxxxxxxxxx> wrote:
>
>
> On 9/3/14, 7:48 AM, "Antonio de la Oliva" <aoliva@xxxxxxxxxx> wrote:
>
>>Dear all,
>>this can also be done by CLI on Linux and by the GUI in Windows, so it
>>is a well known feature. I agree that manual modification is not the
>>best option for the purposes of this group.
> Yes - but Bob was discussing a possible IETF trial of some sort.  It would
> be interesting to document the impact of address changes in various
> environments.
>
> While the call was running, I tried changing MAC address.  I lost
> connection to Wi-Fi and the web sharing, but it did reconnect.  I suspect
> that this will generally be the case for WPA2-Perssonal implementations.
>
> WPA2-Enterprise (EAP based) authentication will be problematic I suspect
> when MAC address changes occur during a session.  APs would either need to
> be participants in the address change process (e.g. BT example), or the
> changes need to be per BSS/ESS.
>
> Paul
>
>>
>>Br
>>Antonio
>>
>>On Wed, Sep 3, 2014 at 4:46 PM, Paul Lambert <paul@xxxxxxxxxxx> wrote:
>>>
>>> On the topic of testing the impact of randomization of MAC addresses:
>>>
>>> Apple computers can readily change the MAC address using the command
>>>line.
>>> Scripts and tools are available to facilitate this capability.  For
>>>example,
>>> the SpoofMAC script works pretty well for manual changes and can be set
>>>to
>>> run on every start-up.
>>>
>>> https://github.com/feross/SpoofMAC
>>>
>>> Manual setting or per boot setting is not the optimal approach.  MAC
>>>address
>>> changes should be integrated into the connection software (e.g. Wi-Fi
>>> supplicant) to change address in coordination with association to
>>>particular
>>> BSS/ESS.
>>>
>>>
>>> Paul
>>>
>>>
>>> From: <Zuniga>, Juan Carlos <JuanCarlos.Zuniga@xxxxxxxxxxxxxxxx>
>>> Date: Tuesday, September 2, 2014 at 1:37 PM
>>> To: "stds-802-privacy@xxxxxxxx" <stds-802-privacy@xxxxxxxx>
>>> Subject: September 3 - Teleconference details
>>>
>>> Dear all,
>>>
>>>
>>>
>>> Please find below the call-in details for tomorrow¹s teleconference.
>>>
>>>
>>>
>>> Best regards,
>>>
>>>
>>>
>>> Juan Carlos
>>>
>>>
>>>
>>> -------------------------------------------------------
>>>
>>> Agenda
>>>
>>> -------------------------------------------------------
>>>
>>>  - Welcome
>>>
>>> - Chair's slides
>>>
>>> - IEEE Slides
>>>
>>> - Group's Introduction
>>>
>>> - Technical Topics
>>>
>>> (1) Privacy Issues at Link Layer
>>>
>>> (2) Threat Model for Privacy at Link Layer
>>>
>>> (3) Proposals regarding functionalities in IEEE 802 protocols to improve
>>> Privacy
>>>
>>> (4) Proposals regarding measuring levels of Privacy on Internet
>>>protocols
>>>
>>> (5) Other
>>>
>>> - Next Steps
>>>
>>>
>>>
>>> -------------------------------------------------------
>>> Meeting information
>>> -------------------------------------------------------
>>> Topic: EC Priv Recomm SG #1
>>> Date: Wednesday, September 3, 2014
>>> Time: 10:00 am, Eastern Daylight Time (New York, GMT-04:00)
>>> Meeting Number: 740 470 465
>>> Meeting Password: privrecsg
>>>
>>> -------------------------------------------------------
>>> To start or join the online meeting
>>> -------------------------------------------------------
>>> Go to
>>>
>>>https://premconf.webex.com/premconf/j.php?MTID=m3817347fdb37efa239a354f3d
>>>a2e6bfd
>>>
>>> -------------------------------------------------------
>>> Teleconference information
>>> -------------------------------------------------------
>>> Provide your phone number when you join the meeting to receive a call
>>>back.
>>> Alternatively, you can call:
>>> Call-in number (Premiere): 1-719-867-1571  (US/Canada)
>>> Show global numbers:
>>>
>>>https://www.myrcplus.com/cnums.asp?bwebid=8369444&ppc=542167&num=1&num2=1
>>>719-867-1571
>>> Attendee access code: 542167
>>>
>>>
>>> -------------------------------------------------------
>>> For assistance
>>> -------------------------------------------------------
>>> 1. Go to https://premconf.webex.com/premconf/mc
>>> 2. On the left navigation bar, click "Support".
>>> To add this meeting to your calendar program (for example Microsoft
>>> Outlook), click this link:
>>>
>>>https://premconf.webex.com/premconf/j.php?MTID=m272e6fe525b4b6d87d2af77f9
>>>792354a
>>>
>>> To check whether you have the appropriate players installed for UCF
>>> (Universal Communications Format) rich media files, go to
>>> https://premconf.webex.com/premconf/systemdiagnosis.php.
>>>
>>> http://www.webex.com
>>>
>>> CCM:+17198671571x5421670#
>>>
>>> IMPORTANT NOTICE: This WebEx service includes a feature that allows
>>>audio
>>> and any documents and other materials exchanged or viewed during the
>>>session
>>> to be recorded. You should inform all meeting attendees prior to
>>>recording
>>> if you intend to record the meeting. Please note that any such
>>>recordings
>>> may be subject to discovery in the event of litigation.
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>--
>>Antonio de la Oliva
>>Assistant Professor
>>Telematics Department
>>Universidad Carlos III de Madrid
>>E-mail: aoliva@xxxxxxxxxx
>>Phone: +34 91 624 8803
>>Fax:   +34 91 624 8749
>



-- 
Antonio de la Oliva
Assistant Professor
Telematics Department
Universidad Carlos III de Madrid
E-mail: aoliva@xxxxxxxxxx
Phone: +34 91 624 8803
Fax:   +34 91 624 8749