Installation guide

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Custom Port Forwarding
The Custom Port Forwarding page allows you to create up to 15 custom port
forwarding entries to support specific services or applications, such as concurrent
NAT/NAPT operation.
Connection: Select the WAN connection on which the Custom Port Forwarding rule
is to be applied.
Enable: The Enable button is checked by default, meaning this rule is automatically
applied when you click the Apply button.
Application: Name of the application for which your ports will be opened.
Protocol: There are three options available: TCP, UDP, and TCP and UDP.
Source IP Address: You can define the source IP address from which the incoming
traffic is allowed. Enter 0.0.0.0 for all.
Source Netmask: Netmask of the source IP address. Enter 255.255.255.255 for all.
Destination IP Address: The LAN-side destination IP address for incoming traffic.
Destination Netmask: The LAN-side destination netmask for incoming traffic. The
default value of this field is 255.255.255.255.
Destination Port Start: The starting port number that is made open for this
application.
Destination Port End: The ending port number that is made open for this application.
Destination Port Map: Destination port mapped on the LAN (destination) side to
which packets are forwarded. There are two types of port mapping:
• One-to-one (one port mapped to one)
• Multiple-to-one (multiple ports mapped to one port)
Click Apply to complete the setup. Click Save All to save the changes.