NetCrunch Knowledge Base

How-tos, troubleshooting and answers about NetCrunch.

Network ports open by NetCrunch

What ports does NetCrunch normally listen on?

Applies to 8.x 7.x 6.x

NetCrunch opens and listens on following ports:

Port 162 UDP - SNMP Traps
Port number can be changed in program options.
Feature can be disabled in program options.
Port 514 UDP - SYSLOG messages
Port number can be changed in program options.
Feature can be disabled in program options.
Port 80 TCP - WebAccess
Port number can be changed in program options.
User can choose between HTTP and HTTPS.
Feature can be disabled in program options.
Port 12007
port for connection between NetCrunch 7 Server and Administration Console
This port can be changed
Port 12008
Connection Broker port
Port 12009
port for connection between NetCrunch 8 Server and Administration Console
This port can be changed

Port 12010 - Event Database port :

Port 12030
Port for connection between NetCrunch Server and NetCrunch Guard

Port 9996 - NetFlow collector port :

NetCrunch. Answers not just pictures

Maps → Alerts → Automation → Intelligence