Network Ports

To ensure proper communication between the host and the Qblox Cluster, ensure that your network environment allows traffic through the required ports. The Cluster Management Module (CMM) utilizes the following TCP ports.

Port List

Port	Protocol	Usage
22	TCP	SSH Access
80	TCP	HTTP
443	TCP	HTTPS
53	TCP	DNS
5025 - 5026	TCP	Instrument Control
20802 - 20855	TCP	Internal
22001 - 22020	TCP	Internal
23001 - 23020	TCP	Internal
24001 - 24020	TCP	Internal
25001 - 25020	TCP	Internal
26001 - 26020	TCP	Internal

Important

The wide ranges (e.g., 20800–26000) are used for internal communications and management services. If you are configuring a strict firewall, ensure that these ranges are open for traffic originating from the instrument IP address.