Hi Vidar,
Long time no see ;-)
I have a customer with Cisco IR809 and IR829 industrial routers that have this feature and that I have programmed and tested myself.
I also know that the Cisco 819, 880G and 890G ISR routers have the same feature.
There is also a module for different types of ISR G2 routers (19XX, 29XX and 39XX) that can be connected to an antenna with GPS, the Cisco 4G Enhanced High-Speed WAN Interface Card (EHWIC). These cards are bought by many to be used as a backup 4G/3G link in case the cable/fiber connection is down. The GPS is just an added bonus on this card.
And there is network interface modules (NIM) for the new 4000 series routers, f.ex. the Cisco LTE Advanced 3.0 NIM and the Cisco LTE 2.0 NIM that support GPS, that do the same for those types of routers.
If there are more routers or other boxes that support GPS and what the plans are for the future I am not sure, but it seems to me that all new boxes that support 4G inbuilt or via a card have GPS also.
So if you get any data from this SNMP MIB it means this router have GPS capability and it should be possible to use it in NAV.
Actually, the 829 industrial router also have accelerometer and gyroscope just like a modern smartphone so it is possible to have alarms if those values are outside some set limits, ie the router can inform operations that the truck have crashed, in real time.
With high regards to the Uninett crew,
Roger