How to: Set Up and Check Ethernet Settings in Mac OS 9
  1. From the Apple menu, select Control Panels, and then click to select TCP/IP.
  2. In the TCP/IP window, from the Edit menu, click to select User Mode.
  3. From the User Mode dialog box, click to select Advanced, and then click OK.
  4. In the TCP/IP window, from the Connect via drop-down menu, click to select Ethernet.
  5. From the Configure drop-down menu, click to select Using DHCP Server.
  6. Click Options.
  7. In the TCP/IP Options dialog box, ensure that only Active is selected, and then click OK.
  8. To close the TCP/IP window, click the Close box.
  9. In the Save changes to the current configuration warning dialog box, click Save.