Network Connectivity Requirements – Link4 Pearl Controller

Network Connectivity Requirements – Link4 Pearl Controller

Needed if your network security is blocking ports.
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Overview:
The Link4 Pearl controller connects to the internet using standard Ethernet (IPv4) via its onboard Ethernet port.
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● DHCP (Dynamic IP): Supported by default; no configuration required
● Static IP: Can be configured manually via the controller’s front panel (IP Address, Subnet Mask, Gateway)
The controller initiates outbound connections only and does not require any inbound port forwarding.
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Firewall / Network Security Configuration
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In most environments, no special configuration is required. However, if outbound traffic is restricted by your network security, the following ports and destinations must be allowed:

Additional Notes

● All communication is initiated by the controller (outbound)
● No inbound firewall rules or port forwarding are required
● DNS resolution must be available for the listed hostnames
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Revisions:
● V1.0 4/17/2026 Brian Shim

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