Planet Technology XRT-501 - Manual (Page 7)

3.1 Cable modem (TV-style cable)
Choose Cable Modem if you’re ISP will automatically give you an IP address. Some
ISP’s may also require that you fill in additional information such as MAC address
(see screen below).
Parameter Description
Host Name
Some ISP’s may also require you to use a particular Hostname,
Domain name, or MAC (physical) address. If required, please
enter Hostname, Domain name provided by your ISP.
Domain Name
Clone MAC
Address Use “Clone MAC address” button to copy the MAC (physical)
address from your PC to the XRT-501.
MAC
(physical)
Address
Your ISP may require a particular MAC address in order for
you to connect to the Internet. This MAC address is the PC’s
MAC address that your ISP had originally connected your
Internet connection to. Type in this MAC address in this section
or use the Clone MAC Address button to replace the WAN MAC
address with the MAC address of that PC (you have to be using
that PC for the Clone MAC Address button to work).
Note
The MAC address section is optional and you can skip this section if
your ISP does not require these settings for you to connect to the
Internet.