Only a packet capture will tell, and as Eric pointed out, doesn't seem to be happening on the Beta. Time will tell "how" this feature is implemented.
I do see this having the following impact: *Band Steering (Cisco-speak=Band Select) -- If probes are sent from dif. mac's per radio this will break current implementation of Band Steering. *Roaming troubleshooting -- Analyzing when a STA begins to 'Probe' for other AP's (while connected to first AP) will become difficult/impossible. Will need to rely solely on Auth &Assoc. requests. *Passive tracking -- Things like 'dwell time' (dots on a map in front of the bathroom). Will artificially increase those numbers. All depends on how it's implemented. Different MAC per radio? How often does it regenerate a random MAC? Once at boot-up? Every probe-cycle? Every Probe? (that would be 34 dif. mac's in one active-scan @ 1 per channel!). Just not enough info yet. Mike Albano On Tue, Jun 10, 2014 at 6:12 AM, Eric Kenny <eric.ke...@marist.edu> wrote: > I can confirm that my iPhone 5s with iOS 8 beta does NOT randomize the MAC > address in probe requests. This was determined by capturing and analyzing > the probe request frames. > > > > Thanks, > > > > Eric J. Kenny > > Network & Security Engineer > > Marist College > > 3399 North Rd. > > Poughkeepsie, NY 12601 > > 845.575.3820 > > > > > > > > *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv < > WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> [mailto:The EDUCAUSE Wireless Issues > Constituent Group Listserv <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>] *On > Behalf Of *Frank Sweetser <f...@wpi.edu> > *Sent:* Tuesday, June 10, 2014 9:03 AM > *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > *Subject:* Re: [WIRELESS-LAN] iOS8 and randomized mac addresses > > > > > From what I can tell, they're only randomizing the MAC address on probe > requests. It appears to still use the burned in MAC address for > association > and all subsequent traffic. > > That said, I'd love for someone with an iOS 8 device and a suitable > wireless > sniffer rig to confirm this guess =) > > Frank Sweetser fs at wpi.edu | For every problem, there is a solution > that > Manager of Network Operations | is simple, elegant, and wrong. > Worcester Polytechnic Institute | - HL Mencken > > On 06/10/2014 08:54 AM, Lee H Badman wrote: > > For historical tracking, could be pretty rough especially when > individual > > users have multiple devices. > > > > > > *Lee H. Badman* > > Network Architect/Wireless TME > > ITS, Syracuse University > > 315.443.3003 > > > ------------------------------------------------------------------------------ > > > *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv > > on behalf of Eric Kenny > > > > *Sent:* Monday, June 9, 2014 2:27 PM > > *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > > *Subject:* Re: [WIRELESS-LAN] iOS8 and randomized mac addresses > > > > I h ave the first beta of iOS 8 installed on my iPhone 5s and it does > not > > appear to randomize the MAC address, nor are there any visible settings > to > > enable/disable that "feature." Since the MAC address remains the same > while > > associated to a wireless network it should not pose any issues. The > original > > source in the article indicates that iOS 8 will only randomize the MAC > while > > scanning for available networks. > > > > Thanks, > > > > Eric J. Kenny > > > > Network & Security Engineer > > > > Marist College > > > > 3399 North Rd. > > > > Poughkeepsie, NY 12601 > > > > 845.575.3820 > > > > *From:*The EDUCAUSE Wireless Issues Constituent Group Listserv > > [mailto:The EDUCAUSE Wireless Issues > > Constituent Group Listserv ] *On Behalf Of > > *Rick Coloccia, Jr. > > *Sent:* Monday, June 9, 2014 11:06 AM > > *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > > *Subject:* [WIRELESS-LAN] iOS8 and randomized mac addresses > > > > Just saw this: > > > > > http://www.theverge.com/2014/6/9/5792970/ios-8-strikes-an-unexpected-blow-against-location-tracking > > > > It wasn't touted onstage, but a new iOS 8 feature is set to cause havoc > for > > location trackers, and score a major win for privacy. As spotted by > Frederic > > Jacobs <https://twitter.com/FredericJacobs/status/475601665836744704>, > the > > changes have to do with the MAC address used to identify devices wi! th > in > > networks. When iOS 8 devices look for a connection, they randomize that > > address, effectively disguising any trace of the real dev ice until it > decides > > to connect to a network. > > > > > > Any guesses as to how this will impact wpa2 auth or location tracking > with an > > MSE? (We're a Cisco wireless network with three 5508s in HA config > running > > current 7.6 code.) > > > > Looking forward to your thoughts... > > > > -Rick > > > > > > -- > > > > Rick Coloccia, Jr. > > > > Network Manager > > > > State University of NY College at Geneseo > > > > 1 College Circle, 119 South Hall > > > > Geneseo, NY 14454 > > > > V: 585-245-5577 > > > > F: 585-245-5579 > > > > ********** Participation and subscription information for this EDUCAUSE > > Constituent Group discussion list can be found at > > http://www.educause.edu/groups/ <http://%21%20//%20www.educause.e > du/groups/ <http://%21%20/%20www.educause.edu/groups/>>. > > > > ********** Participation and subscription information for this EDUCAUSE > > Constituent Group discussion list can be found at > > http://www.educause.edu/groups/. <http://www.educause.edu/groups/> > > > > ********** Participation and subscription information for this EDUCAUSE > > Constituent Group discussion list can be found at > > http://www.educause.edu/groups/. <http://www.educause.edu/groups/> > > > > ********** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. > <http://www.educause.edu/groups/> > > ********** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
