Finding Local TCP/IP Ports in Use in an IBM i Environment

In an IBM i environment, you can view the port numbers currently in use on your system with one of these methods.  In these examples, looking for use of local ports 8000 and 8001:

• Select from the iSeries Navigator, select > Network, then > TCP/IP Configuration, then > IPv4, then > Connections.  Click on the Local Port column to sort and scroll to range of ports.

• If you do not see local port 8000 and 8001, they are not being used or in use.

• Select from the Navigator for I (using web browser (system name or ip:2001)), select > Network, then > TCP/IP Configuration, then > IPv4, then > Connections.  Click on the Local Port column to sort and scroll to range of ports, or use filter.

• If you do not see local port 8000 and 8001, they are not being used or in use.

• Enter WRKTCPSTS on an IBM i command line and select Option 3 (Work with TCP/IP connection status). Press F14 to sort the port numbers in numerical sequence, and Press F15 to subset Local port range (Upper value 8000, and Lower value 8001).

• Enter NETSTAT *CNN on an IBM i command line and press Enter. Press F14 to sort the port numbers in numerical sequence, and Press F15 to subset Local port range (Upper value 8000, and Lower value 8001).

• If you see this when you subset Local port range, then they are not being used or in use.