RE: [WIRELESS-LAN] Windows 10 Random Mac Address
I do not believe this is materially different than Apple's implementation of randomized MAC addresses. They randomize them while probing wifi networks, so that the device is not unwittingly being tracked or monitored. When the device deliberately connects to an SSID, however, the MAC address remains the same. Windows appears different in one particular way, to be fair, in that the MAC address will randomize if the user chooses to forget the connection and then reconnect to it. Which is definitely a very real possibility. -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Frank Sweetser Sent: Friday, August 28, 2015 8:07 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Windows 10 Random Mac Address Does anyone have a list or reference of what hardware supports this "feature"? A quick survey of some of our known Windows 10 users has shown no sign of it. Sent from my Android device with K-9 Mail. Please excuse my brevity. On August 28, 2015 5:55:33 PM EDT, Jake Snyder <jsnyde...@gmail.com> wrote: >Found a good presentation on this from the IETF >https://www.ietf.org/proceedings/93/slides/slides-93-intarea-5.pdf > >On Fri, Aug 28, 2015 at 3:45 PM, Heath Barnhart ><heath.barnh...@washburn.edu >> wrote: > >> Anyone else seeing Windows 10 devices with "Randomize WiFi Hardware >> Address" on? Just had one show up at our help desk. As we require MAC >> registration this puts a bind in things. Does anyone else have some >> information, a quick Google search didn't come up with anything. >> >> >> >> Heath Barnhart, CCNA >> ITS Network Administrator >> Washburn University >> 785-670-2307 >> >> ** 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/. ** 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/.
Re: [WIRELESS-LAN] Windows 10 Random Mac Address
So it is supposed to work like Apple's implementation? From what I saw the device maintained the random MAC address after associating. They had been connected to our WiFi for several weeks, so it should have been a known network and not used the random MAC. DHCP logs didn't show discovery packets from the device with the random MAC. After disabling the feature and rebooting the device was able to reconnect. This came in late on Friday and I didn't want to tie up the student so I didn't do anymore digging on the device. Heath Barnhart, CCNA ITS Network Administrator Washburn University 785-670-2307 From: The EDUCAUSE Wireless Issues Constituent Group Listserv <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> on behalf of Patrick Mauretti <pmaure...@massasoit.mass.edu> Sent: Monday, August 31, 2015 10:10 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Windows 10 Random Mac Address I do not believe this is materially different than Apple's implementation of randomized MAC addresses. They randomize them while probing wifi networks, so that the device is not unwittingly being tracked or monitored. When the device deliberately connects to an SSID, however, the MAC address remains the same. Windows appears different in one particular way, to be fair, in that the MAC address will randomize if the user chooses to forget the connection and then reconnect to it. Which is definitely a very real possibility. -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Frank Sweetser Sent: Friday, August 28, 2015 8:07 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Windows 10 Random Mac Address Does anyone have a list or reference of what hardware supports this "feature"? A quick survey of some of our known Windows 10 users has shown no sign of it. Sent from my Android device with K-9 Mail. Please excuse my brevity. On August 28, 2015 5:55:33 PM EDT, Jake Snyder <jsnyde...@gmail.com> wrote: >Found a good presentation on this from the IETF >https://www.ietf.org/proceedings/93/slides/slides-93-intarea-5.pdf > >On Fri, Aug 28, 2015 at 3:45 PM, Heath Barnhart ><heath.barnh...@washburn.edu >> wrote: > >> Anyone else seeing Windows 10 devices with "Randomize WiFi Hardware >> Address" on? Just had one show up at our help desk. As we require MAC >> registration this puts a bind in things. Does anyone else have some >> information, a quick Google search didn't come up with anything. >> >> >> >> Heath Barnhart, CCNA >> ITS Network Administrator >> Washburn University >> 785-670-2307 >> >> ** 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/. ** 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/. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
RE: [WIRELESS-LAN] Windows 10 Random Mac Address
It does come with a user configurable option to randomize the MAC address for known networks daily. That's definitely a feature that will break things if enabled. If they also change it so that the feature is configured that way by default, then yes, all hell will break loose. It's one thing to have a knowledgeable user turn it on, but another to have it on and the user not know what to do. -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Heath Barnhart Sent: Monday, August 31, 2015 2:26 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Windows 10 Random Mac Address So it is supposed to work like Apple's implementation? From what I saw the device maintained the random MAC address after associating. They had been connected to our WiFi for several weeks, so it should have been a known network and not used the random MAC. DHCP logs didn't show discovery packets from the device with the random MAC. After disabling the feature and rebooting the device was able to reconnect. This came in late on Friday and I didn't want to tie up the student so I didn't do anymore digging on the device. Heath Barnhart, CCNA ITS Network Administrator Washburn University 785-670-2307 From: The EDUCAUSE Wireless Issues Constituent Group Listserv <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> on behalf of Patrick Mauretti <pmaure...@massasoit.mass.edu> Sent: Monday, August 31, 2015 10:10 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Windows 10 Random Mac Address I do not believe this is materially different than Apple's implementation of randomized MAC addresses. They randomize them while probing wifi networks, so that the device is not unwittingly being tracked or monitored. When the device deliberately connects to an SSID, however, the MAC address remains the same. Windows appears different in one particular way, to be fair, in that the MAC address will randomize if the user chooses to forget the connection and then reconnect to it. Which is definitely a very real possibility. -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Frank Sweetser Sent: Friday, August 28, 2015 8:07 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Windows 10 Random Mac Address Does anyone have a list or reference of what hardware supports this "feature"? A quick survey of some of our known Windows 10 users has shown no sign of it. Sent from my Android device with K-9 Mail. Please excuse my brevity. On August 28, 2015 5:55:33 PM EDT, Jake Snyder <jsnyde...@gmail.com> wrote: >Found a good presentation on this from the IETF >https://www.ietf.org/proceedings/93/slides/slides-93-intarea-5.pdf > >On Fri, Aug 28, 2015 at 3:45 PM, Heath Barnhart ><heath.barnh...@washburn.edu >> wrote: > >> Anyone else seeing Windows 10 devices with "Randomize WiFi Hardware >> Address" on? Just had one show up at our help desk. As we require MAC >> registration this puts a bind in things. Does anyone else have some >> information, a quick Google search didn't come up with anything. >> >> >> >> Heath Barnhart, CCNA >> ITS Network Administrator >> Washburn University >> 785-670-2307 >> >> ** 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/. ** 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/. ** 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/.
Re: [WIRELESS-LAN] Windows 10 Random Mac Address
Found a good presentation on this from the IETF https://www.ietf.org/proceedings/93/slides/slides-93-intarea-5.pdf On Fri, Aug 28, 2015 at 3:45 PM, Heath Barnhart heath.barnh...@washburn.edu wrote: Anyone else seeing Windows 10 devices with Randomize WiFi Hardware Address on? Just had one show up at our help desk. As we require MAC registration this puts a bind in things. Does anyone else have some information, a quick Google search didn't come up with anything. Heath Barnhart, CCNA ITS Network Administrator Washburn University 785-670-2307 ** 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/.
Re: [WIRELESS-LAN] Windows 10 Random Mac Address
So does anyone know if this was a feature at launch? Heath Barnhart, CCNA ITS Network Administrator Washburn University 785-670-2307 From: The EDUCAUSE Wireless Issues Constituent Group Listserv WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU on behalf of Jake Snyder jsnyde...@gmail.com Sent: Friday, August 28, 2015 4:55 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Windows 10 Random Mac Address Found a good presentation on this from the IETF https://www.ietf.org/proceedings/93/slides/slides-93-intarea-5.pdf On Fri, Aug 28, 2015 at 3:45 PM, Heath Barnhart heath.barnh...@washburn.edumailto:heath.barnh...@washburn.edu wrote: Anyone else seeing Windows 10 devices with Randomize WiFi Hardware Address on? Just had one show up at our help desk. As we require MAC registration this puts a bind in things. Does anyone else have some information, a quick Google search didn't come up with anything. Heath Barnhart, CCNA ITS Network Administrator Washburn University 785-670-2307tel:785-670-2307 ** 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/. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] Windows 10 Random Mac Address
Does anyone have a list or reference of what hardware supports this feature? A quick survey of some of our known Windows 10 users has shown no sign of it. Sent from my Android device with K-9 Mail. Please excuse my brevity. On August 28, 2015 5:55:33 PM EDT, Jake Snyder jsnyde...@gmail.com wrote: Found a good presentation on this from the IETF https://www.ietf.org/proceedings/93/slides/slides-93-intarea-5.pdf On Fri, Aug 28, 2015 at 3:45 PM, Heath Barnhart heath.barnh...@washburn.edu wrote: Anyone else seeing Windows 10 devices with Randomize WiFi Hardware Address on? Just had one show up at our help desk. As we require MAC registration this puts a bind in things. Does anyone else have some information, a quick Google search didn't come up with anything. Heath Barnhart, CCNA ITS Network Administrator Washburn University 785-670-2307 ** 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/. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
