Hi Sandeep,
as long as the port is not used/required by any other service on your system you can use any port above 1024 you want your IS to listen to.
make sure that your partner can reach this port, eventually you have to check for additional firewall clearance.
Ports below 1024 are only usable if you have root or admin rights on the hosting system.
Regards,
Holger
#webMethods#webMethods-General#Integration-Server-and-ESB