IBM AS/400E Chapter 2. Conguring TCP/IP

Chapter 2. Conﬁguring TCP/IP

This chapter explains how to conﬁgure an AS/400 business computing system for

Transmission Control Protocol/Internet Protocol (TCP/IP). If this is the ﬁrst time that

you have conﬁgured TCP/IP on anAS/400 system, you should read the entire

chapter before performing any of the conﬁguration tasks.

If you are unfamiliar with TCP/IP,consider reading Chapter 1. TCP/IP on AS/400.

For a complete formal description of TCP/IP,you can read the Request for

Comments (RFC). Or, refer to any of the TCP/IPreferences that are listed in

“Request For Comments (RFC)” on page602. Information about how to order an

RFC is also listed within that topic.

Before you start conﬁguring TCP/IP,you must ensure that the

licensed program (LP) is installed on your system. See

“Installing the TCP/IPApplication Programs” on page 23 for more information.

The AS/400 has many commands and menus available to help you conﬁgure

TCP/IP on AS/400. Before you begin this task, take time to review theTCP/IP

Administration (TCPADM) menu, Figure9 on page 26, and the Conﬁgure TCP/IP

(CGFTCP) menu, Figure 10 on page 28.

The initial displays and menus that are shown when you conﬁgure TCP/IP on your

system may not contain any entries. The sample command line interface displays in

this chapter may already contain data, which was entered for the purpose of

example in previous conﬁguration steps.

Performing conﬁguration tasks on a single network or even a simple multiple

network requires that you do some planning before conﬁguring TCP/IP on any

system in that network, including an AS/400. Tohelp you get started with setting up

TCP/IP,this chapter includes complete planning details and checklists.

Once you have designed a plan, follow the step-by-step process that is outlined for

you in this chapter. Each step guides you through TCP/IPinstallation and

conﬁguration on your system, deﬁnes various terms, and describes how these

terms relate to TCP/IP.

Using the Operations Navigator interface: Youcan conﬁgure TCP/IP through the

Operations Navigator interface wizard. Information related to Operations Navigator

is located in the online help. See the online help in Operations Navigator for

information about the following TCP/IP functions:

vConﬁguring TCP/IP,including basic functions such as starting and stopping

TCP/IP

vCreating a new Ethernet line

vCreating a new token-ring line

vWorking with TCP/IP interfaces, including conﬁguring a TCP/IP route

vWorking with TCP/IP host tables, including conﬁguring a TCP/IPhost name and

domain name

vVerifying a TCP/IP connection (PING)