Many cellphones provide the option to share their data connection over USB (often called "tethering"). This feature uses either the RNDIS, CDC or a custom Apple® iPhone®/iPad® protocol.

Before attaching a device, load the appropriate driver into the kernel:

# kldload if_urndis
# kldload if_cdce
# kldload if_ipheth

Once the device is attached ue0 will be available for use like a normal network device. Be sure that the “USB tethering” option is enabled on the device.