Table 3. Jobs Used by TCP/IP (continued)

Job Name

Description

 

 

ADMIN and DEFAULT

ICS (HTTP) server

 

 

QTWSGxxxxx

Workstation gateway (there may be several)

 

 

Note:

 

1.There may be other jobs running in the QSYSWRK subsystem that have nothing to do with TCP/IP.

2.The TCP/IP jobs in QSYSWRK run under the QTCP user profile, with two exceptions: the TFTP server runs under the QTFTP profile, and the workstation gateway server runs under the QTMTWSG profile.

3.To use APPC over TCP/IP applications, you must set the network attribute Allow AnyNet® (ALWANYNET) to *YES.

End TCP/IP (ENDTCP):

ATTENTION!

No confirmation display appears when you enter ENDTCP is entered. Therefore, you must use the ENDTCP command carefully. The default for the ENDTCP command is to immediately end all TCP/IP processing on the server that you are working on.

Use the End TCP/IP (ENDTCP) command to end all TCP/IP processing.

The command can be issued from the command line or by using option 4 on the TCP/IP Administration menu. To display this menu, enter GO TCPADM on the command line.

Step 9—Verifying the TCP/IP Connection

To verify the TCP/IP connection from your server to the network, use the PING (VFYTCPCNN) function.

1.To test the TCP/IP code without sending anything out of the token-ring adapter, specify the special host name LOOPBACK as follows:

PING LOOPBACK

2.To test the TCP/IP code, token-ring adapter, and token-ring connection, specify the Internet address of the local adapter, as defined in the host table, as follows:

PING RMTSYS(*INTNETADR)

INTNETADR('9.4.73.212')

Or you may enter:

PING RMTSYS(SYSNAM890)

This command sends data out onto the token-ring line, which the local adapter receives again as if the data is from the TCP/IP network.

Figure 18 on page 27 shows the results from a successful connection verification.

26OS/400 TCP/IP Configuration and Reference V5R1

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IBM SC41-5420-04 manual Verifying the TCP/IP Connection, End TCP/IP Endtcp