Ezurio makes M2M (machine to machine) wifi hardware. so it's probably something with the trucking industry and their fleet tracking/cargo tracking etc.
On Tue, Jun 16, 2015 at 3:13 PM, Simon Westlake < [email protected]> wrote: > 00:16:A4 is owned by Ezurio Systems, LTD. Looks like they are owned by > Laird and they make wireless modules for use in non-PC devices like fleet > management, POS, etc. If they are disappearing, I'd imagine you're right, > it is probably some kind of vehicle system. > > > On 6/16/2015 3:27 PM, Ken Hohhof wrote: > >> Fast food franchise at tollway oasis had us set up an open guest hotspot >> as a Virtual AP on their Mikrotik, and we see random WiFi connections and >> DHCP leases for MAC addresses starting with 00:16:A4 and hostnames starting >> with UA followed by a bunch of numbers. The WiFi signal is always low, >> around -90. >> >> Doing some research on the web, I think this may be due to vehicle >> tracking systems, I'm not sure if these are vehicles in the parking lot or >> whizzing by on the tollroad. Also not sure if they are from the vehicle or >> the intermodal container it is carrying. >> >> I'm not sure it is a big problem, we have the DHCP lease time set to 30 >> minutes. >> >> Has anyone else run into this, and if so, did you take any action? I >> guess we could block connections from those MAC addresses, or maybe set a >> higher signal threshold to connect. Or maybe we should just let them check >> their location or call the mothership or whatever they do. >> >> BTW, don't say this is a DOS attack trying to exhaust the DHCP leases, >> they dribble in 1 or at most 2 at a time. If we had the DHCP leases set to >> 30 days, it could be a problem unless we expanded the pool. >> >> >
