Ports used by CA Plex NT Dispatcher

Products

• CA Plex

Issue/Introduction

What ports does CA Plex NT Dispatcher use?

Environment

CA Plex

All versions

Cause

https://learn.microsoft.com/en-us/troubleshoot/windows-server/active-directory/config-firewall-for-ad-domains-and-trusts

Resolution

The ports used by CA Plex are as follows:

• Port 135 (TCP or UDP) for Remote Procedure Call (RPC) service
• Port 137 (UDP) for NetBIOS name service
• Port 138 (UDP) for NetBIOS datagram (reference)
• Port 139 (TCP) for NetBIOS session (NET USE)
• Regarding the port for RPC communication, it depends on the OS - refer to the following Microsoft article