TRENDnet TW100-S4W1CA User Manual page 26

1-2 WAN Connection Type
To select the WAN connection-type, click Dynamic IP (Cable Modem),
Static IP (Fixed-IP), PPPoE (Dial-up xDSL) or PPTP
1-2-1 Dynamic IP (Cable Modem)
To connect to a Dynamic IP (Cable Modem) Internet connection with the
Broadband Router, check the cable modem with the related user's guide.
The Cable modem will automatically configure itself, and the Broadband
Router is configured to automatically assign addresses to each PC.
If required by your ISP, input a host name and MAC address.