with X, it should be as simple as making the physical connection and opening a browser. TCP is by default set to use DHCP. In OS 9 however, TCP/IP control panel is usually set to PPP dial up. Change it to Ethernet Built-in and make sure DHCP is selected. You may even need to assign the router address as the DNS in order for it to work. A restart may be necessary for all settings to be saved as well. When you close the TCP control panel, it should ask you if you want to switch from PPP to Ethernet and also save. Yes on both accounts.