Somewhat related, the nook color's User-Agent string makes it look like a Mac: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_5_7; en-us) AppleWebKit/530.17 (KHTML, like Gecko) Version/4.0 Safari/530.17
Further searching online found that if the device's browser is put into “mobile mode” the user-agent data changes to appear as an android/mobile device. -----Original Message----- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of David LaPorte Sent: Friday, April 01, 2011 4:04 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] One user, many devices I would've hoped so, but ~36% of devices fingerprinted as iPod/iPad/iPhone didn't sent a hostname. Of those that did, ~27% changed it from the default Apple format :( On 04/01/11 15:47, James J J Hooper wrote: > On 01/04/2011 20:18, David LaPorte wrote: >>> Thanks for sharing always interesting to see this kind of information. >>> Wwe have some similar statistics running, so I've included a couple >>> of graphs of our own. Interested to know about how you do this via >>> detecting browser agents when looking at device type. We have been >>> using DHCP fingerprinting which seems pretty successful but we can't >>> tell the difference between and Ipad/Ipod/Iphone etc, which might be >>> good to know since IOS devices appear to make up most of our clients. >> >> We're doing OS detection with DHCP fingerprinting using PacketFence. >> We can't tell an iPad from an iPhone based on the fingerprint either, >> but you might be able to run the fingerprinting data against >> user-agent string or OUI if you're capturing that. I started mapping >> out the Apple-owned OUIs by device type, but - while there's clearly >> method to the madness - I figured it wasn't worth the effort. > > Can you not differentiate between iOS devices by the "host name" in > the DHCP request (http://tools.ietf.org/html/rfc2132#section-3.14) ? > > iOS seems to format the hostname as > <name>s-iP(ad|hone|od) => Annes-iPad > > Obviously, it's not guaranteed to be accurate, but it gives an indication. > > e.g: Pull out apple devices by MAC OUI, then cross reference with DHCP: > > +-- > Total number of devices: 10043 > Total number of devices matching APPLE OUI: 4974 (49.53%) > > Num %ofApple %ofTotal > Total number claiming to be iPods: 556 11.18% 5.54% > Total number claiming to be iPhones: 1585 31.87% 15.78% > Total number claiming to be iPads: 167 3.36% 1.66% > Total remaining, presumed Mac laptops: 2666 53.60% 26.55% > +-- > > Regards, > James > ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
