Provide access to an internal server or device
If the server is using DHCP, it should be assigned a static address or a static DHCP lease. If the server's IP address changes, external access to that server will fail!
First, determine the ports required to access services on your server. For example, on a Web server you would typically use 80 (HTTP) and 443 (HTTPS). For email, you may use 25/465 (SMTP), 110 (POP3) or 143/993 (IMAP).
Next, head to Config > Network > Port Forward Rules and click Add to start creating your rule. Some basic port forwards can be accomplished with Simple mode. For example, if you have a web server with the IP address 192.168.2.25, you could use this rule:
For more control over your conditions, click Switch to Advanced in the bottom left-hand corner of that menu.
| Enable Port Forward Rule | Turns the rule on and off. When disabled, this rule will not be evaluated on any inbound traffic. |
| Description | You can enter anything you like in this field. It is there so you know what the rule is designed to do. |
| New Destination | This is the internal IP address of the device you want this traffic sent to. |
| New Port | Optional. You can specify a port other than the one the traffic arrived on, if desired. If the traffic should be sent to the same port on the internal device, leave this field blank. |
You'll see some conditions have been pre-selected. You can delete any you don't need by clicking the red minus icon at the right-hand side. Some of the common conditions used in Port Forward Rules:
| Condition | Value | Notes |
| Destined Local | true/false | Required. This indicates that traffic is destined for a device inside the network. |
| Protocol | select from list | To select all/any, remove this condition. It's only necessary if you want to restrict the port forward to certain protocols. |
| Destination Port | integer | The port the traffic arrives on. This is the port(s) to be forwarded. |
| Destination Address | IP address | Useful if you have multiple WANs and do not want the rule to trigger for all WANs. |
| Source Address | IP address | Useful to specify a sender IP address(es) that is allowed to use the Port Forward. Any traffic not originating from this IP will be blocked. |
More detailed information on Port Forward Rules can be found in our official documentation: Port Forward Rules.
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