Ports

To enable communication between the Agents and nVision, it is necessary to open specific ports on the devices with Agents and on the device with nVision running. Agents and nVision automatically open the required ports in Windows Firewall. However, if any other firewall is present, these ports must be opened manually. These ports must also be open on the router, if the Agents work outside of the local network containing the nVision machine.

Ports open on the device with nVision

TCP port

Description

4434

diagnostic information

4436

Communication with Agents (permanent connection).

8080*

WebAccess – access to nVision via web browser.

* Configurable value. Can be changed in nVision: Tools / Options / Services Configuration / Web Access.

Ports open on the remote devices

If the ports on the device with the Agent are closed, the Agent will continue to collect monitored data and send them to nVision; however, some operations made in nVision will not have an immediate effect in the Agent.

TCP port	Description
4433	I diagnostic information.
135.139, 445, 593	WMI, including the monitoring of Windows counters (Monitoring and managing Windows with WMI). Important: Windows counters can also be monitored by Agents (see Monitoring Windows services).

Additionally, when monitoring TCP/IP services, the respective ports on the remote device, depending on the monitored service e.g. TCP 80 for HTTP, must be open.

For more information about the remote access and permanent connection between the Agent and nVision, see the chapter Remote access.

For more information about configuring Agents on mobile machines, see the chapter Configuration of Agents installed on mobile machines.