Using a Control4 System Behind a Firewall

This article details the ports used by Control4, so a system administrator can open the ports for the Control4 system to be contacted remotely.

❌  Do not port forward inbound traffic through your router or firewall.

💡 All communication is initiated by the Control4 Controller and sent outbound to Control4 Servers. There is no need to alter your firewall to allow for inbound traffic.

If you need more information around IP addresses and domains being addressed, check our article Which Network Ports & Hosts Does a Control4 System Use?

Required IP Address to Allow Traffic From

Internal IP address of your main Control4 Controller (Director)

Required Outbound Ports

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Ports for DNS are needed to resolve FQDN hostnames. An internal DNS server can be used instead if it can properly resolve the hostnames of the Control4 Servers.