3Com TMX 10031161 - Manual (Page 13)

Configuring the TCP/IP Protocol 7
15 Click the Renew button. Numbers will replace the zeros.
Click OK and turn to "Hardware and Software Installation"
(page 11).
NOTE: The numbers on your screen SHOULD be different
than those shown in the following example.
Configuring the TCP/IP Protocol on a Macintosh PC
You need to make sure that the TCP/IP communications
protocol is installed on your system before you install your
cable modem.
1 Click the Apple icon in the upper left corner of the Finder.
Scroll down to Control Panels, and click TCP/IP.