3 ms·
Will these new randomized MACs also be lookupable [1] to find the model? If I'm the feds running honeypot wifi and I see a different Dell Chromebook doing thing
by PascLeRasc 9y ago
Will these new randomized MACs also be lookupable [1] to find the model? If I'm the feds running honeypot wifi and I see a different Dell Chromebook doing things interesting to me every day, this isn't a good cover.
[1] https://www.macvendorlookup.com/ https://www.macvendorlookup.com/
- tscs37 9y agoNot necessarily. However, if you're the only random MAC user on a network, it can be trackable. Depending on implementation the MAC will have a specific bit set to indicate it is user supplied and not necessarily universally unique but I'm not sure if NM does that.
- paulfurley 9y agoNo, because they use the 'locally administered' prefix [1]. This is deliberate in order not to collide with real existing MAC addresses. (The original version of the post used real, Intel MAC prefixes [2] and you can look in the gist revision for that code if you prefer.) BTW if it's really the feds you're worried about, this article probably isn't for you. [1] https://en.wikipedia.org/wiki/MAC_address#Universal_vs._local https://en.wikipedia.org/wiki/MAC_address#Universal_vs._loca... [2] https://github.com/paulfurley/www.paulfurley.com/commit/bebcacfafc1a21a9dc367889b7c2beddb3285485 https://github.com/paulfurley/www.paulfurley.com/commit/bebc...