The recommended time to configure TCP/IP on system running AIX is during initial software installation with Install Assist. However, if TCP/IP needs to be configured later, the following steps can be followed:
Step 1
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Logout of the AIX Desktop (CDE).
Step 2
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Use the Options button at the AIX login window to begin a command line login. Be sure to hit the enter or return key so that you receive a login prompt.
Step 3
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Login as root.
Step 4
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Execute the following command to open the TCP/IP configuration window:
smit tcpip
Step 5
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Press the Enter or Return key to select Minimum Configuration & Startup.
Step 6
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Select the interface to be configured (commonly en0).
Step 7
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Complete the TCP/IP configuration by completing the Entry Fields. Use arrow keys to move between fields. Once the entry fields are complete, press Enter or Return.
NOTE: Do not set START now to "yes".
Step 8
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Press the F10 key to exit TCP/IP configuration.
Step 9
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Check the contents of the '/etc/hosts' file by entering the following command:
more /etc/hosts
The end of the file should have a line for loopback exactly as follows:
127.0.0.1 localhost loopback # loopback lo0 name/address
It should also have an entry for your hostname similar to this:
192.14.4.16 spoetzl <----your hostname; should contain one entry
If either of these lines are incorrect, the '/etc/hosts' file needs to be edited using vi to correct it before proceeding.
Step 10
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Shut down and reboot the server by entering the following command:
shutdown -Fr