Apple Power Macintosh 4400 - Manual (Page 83)

If you have changed the port, a message tells you that the change will
interrupt any AppleTalk services that are established. This means that your
network services, such as printers and e-mail, may be temporarily
unavailable, and you may have to choose a printer and connect to your e-mail
service again after saving changes.
6 To save your changes, click the Save button.
Your changes take effect immediately; you do not have to restart your
computer.
Getting more information about the AppleTalk control panel
Macintosh Guide contains information about additional capabilities available
in the AppleTalk control panel, such as
m using configurations, a way to save different AppleTalk settings and switch
among them as desired—for example, if you use your computer with more
than one network
m using the User Mode command to change the availability of settings in the
AppleTalk control panel
m turning AppleTalk off in order to save RAM in your computer when you
are not using an AppleTalk network
For more information about these capabilities, click the h button in the
AppleTalk control panel.
Configuring your TCP/IP network connection
You must set up the TCP/IP control panel if your computer is connected to a
network that uses TCP/IP standards, such as the Internet.
TCP/IP (Transmission Control Protocol/Internet Protocol) is a set of rules that
is applied to data traveling on the Internet. The rules exist to standardize the
treatment of data on the Internet so that many disparate kinds of computers
can recognize the data when it arrives. TCP/IP protocols can be used with
many different types of network hardware and with LocalTalk, Ethernet, and
dial-up Internet connections. If you don’t know whether your network uses
TCP/IP, contact your network administrator.
83 Connecting Your Computer to a Network