beginning with macintosh operating system 7, tcp/ip is already installed on the macintosh. on each networked macintosh, you will need to configure tcp/ip to use dhcp.
macos 8.6 or 9.x
1.from the apple menu, select control panels, then tcp/ip.
the tcp/ip control panel opens:

2.from the “connect via” box, select your macintosh’s ethernet interface.
3.from the “configure” box, select using dhcp server.
you can leave the dhcp client id box empty.
4.close the tcp/ip control panel.
5.repeat this for each macintosh on your network.
macos x
1.from the apple menu, choose system preferences, then network.
2.if not already selected, select built-in ethernet in the configure list.
3.if not already selected, select using dhcp in the tcp/ip tab.
4.click save.
verifying tcp/ip properties for macintosh computers
after your macintosh is configured and has rebooted, you can check the tcp/ip configuration by returning to the tcp/ip control panel. from the apple menu, select control panels, then tcp/ip.

the panel is updated to show your settings, which should match the values below if you are using the default tcp/ip settings that netgear recommends:
1 the ip address is between 192.168.0.2 and 192.168.0.254
2 the subnet mask is 255.255.255.0
3 the router address is 192.168.0.1
if you do not see these values, you may need to restart your macintosh or you may need to switch the “configure” setting to a different option, then back again to “using dhcp server”.