Gateway none - Manual (Page 47)

4-11
CHAPTER 4
4.3.4.1 Dynamic IP Address - DHCP
The Host Name is optional, but may be required by some
ISPs. The default MAC address is set to the WAN's physical
interface on the Gateway. Use this address when registering
for Internet service, and do not change it unless required by
your ISP. You can use the "Clone MAC Address" button to
copy the MAC address of the Ethernet Card installed by
your ISP (in your PC) and replace the WAN MAC address
with this MAC address.