The new uTasker release V1.4.11 http://www.utasker.com/forum/index.php?topic=1721.0
contains many new features including two new USB classes: Audio (with clock domain synchronisation) and RNDIS (virtual Ethernet)
RNDIS (Remote Network Driver Interface Specification) allows devices with Ethernet to be used as a USB-Ethernet adapter by a host. Or allows the host to communicate with the device as if it were a node on the connection's network which can also be used by devices that don't have Ethernet [the device can still communicate via TELNET or be configured with a web browser or files transferred to it using FTP]. Mixtures of these are also possible.
Below are 5 configurations that are supported, allowing Kinetis devices with Ethernet to operate as multi-homed devices or bridges as well as simple USB-Ethernet adapter. The configurations should be quite self-explanatory but a detailed RNDIS document is being worked on too which will be available shortly. [Configuration 3 is used by devices without Ethernet controller]