Netopia R9100 User Reference Manual page 25

Connecting to Your Local Area Network 4-3
After
Using the Netopia R9100 Ethernet Router, you can connect multiple computers to the Internet with a single
user account.
using a DSL modem with a Netopia R9100
using a cable modem with a Netopia R9100
While this network model is typical, other network models are possible. For example, you may choose to attach
the Ethernet WAN port to an external Ethernet hub connected to a number of workstations.