Farallon Communications PB 1400 - Manual (Page 11)

Installation 11
Configuring the networking software
Note: Network software configuration for Macintosh computers
running Open Transport is slightly different than for those running
traditional Macintosh operating software with Classic Ethernet. Be
sure to follow the appropriate instructions below.
For Classic Ethernet, open the Network control panel. For Open
Transport, open the AppleTalk control panel.
For Classic Ethernet, click EtherTalk Alternative. For Open Transport,
choose Alternate Ethernet from the pop-up menu. If a message asks
you to confirm the change of network connections, click OK.
After the network connection has been changed, you can choose a
zone. If zones are available, the Current Zone pop-up menu will be
active.
When you are finished, close the control panel. Your Macintosh is
now configured for Ethernet.