pfSense

Already requested here: https://redmine.pfsense.org/issues/6293

I tested this and it works OK with my Nexus 4.

It does not suffer huge issues if the phone is disconnected while the interface is assigned though it reports some odd values in places where the ue0 NIC should be.

It does not renew the DHCP lease when the phone is reconnected though that is the only thing required to get the connection back up.

It dumps you at the assign interfaces screen if you reboot while it's assigned and disconnected which is expected as the NIC is not there. Adding ue to the do not check for mismatch list in utils.inc works past that but might cause other issues.