When you configure WebSphere Application Server resources or assign port numbers to other applications, avoid conflicts with other assigned ports. In addition, explicitly enable access to particular port numbers when you configure a firewall.
For more information about port numbers that your iSeries system currently uses, enter the NETSTAT *CNN command on the command line. Press F14 to view assigned port numbers.
You can also use the port validator tool to find port conflicts between different WebSphere Application Server profiles, products, and servers. See port validator tool.
You can use the dspwasinst command-line tool to display the port information for a profile. See dspwasinst command.
See chgwassvr command.