In this example, port 80 may be restricted unless you opt to subscribe to a "business-grade" level of Internet service. Also, you need to verify if your ISP restricts any ports. Here we use it for port forwarding where all the TCP connections to 127.0.0.1:8080 will be redirected to port 1234. The key is that you will need to have a publicly-reachable WAN-side IP address for this to work successfully. Socat is generally a command-line utility in the Linux which is used to transfer data between two hosts. That same client will need to know your Public IP address or complete domain name of your AirPort to make the connection. A remote client, using a web browser, will communicate with TCP port 80 on your AirPort's NAT "firewall" which will forward that communication to TCP port 80 on your web server. In this very simple example, you have a web server on your local network with a static IP address of 192.168.1.201. The following is an example port mapping for running a web server on your local network that you want accessed from the Internet. Public TCP Ports: This is the WAN-side port of your AirPort's NAT service that will be "listening" for inbound TCP traffic to your local network.Description: This is the WAN-side port of your AirPort's NAT service that will be "listening" for inbound UDP traffic to your local network.While still on the Network tab in the AirPort Utility, click the " +" (Add) button under Port Settings.Step #2: Setup Port Mapping on the base station Click the " +" (Add) button under DHCP Reservations.Verify that the option Router Mode = DHCP and NAT AirPort Utility > Select the base station > Edit > Network tab.( Note this is the device that you want to access from a remote location.) Step #1: Reserve a DHCP-provided IP address for the host device.
For any 802.11n or 802.11ac AirPort Extreme Base Station (AEBS) or Time Capsule (TC) you can connect to either the base station's Wi-Fi network or temporarily connect directly, using an Ethernet cable, to one of the base station's LAN (opposing arrows) ports, and then, use the AirPort Utility to make these settings:.To setup port mapping on an 802.11n AirPort Express Base Station (AXn), connect to the base station's wireless network.(Note: The port mapping setup is the same for the entire family of 802.11n & 802.11ac AirPort base stations.) The following instructions provides the basics for setting up the 802.11n or 802.11ac AirPort base stations for port mapping/forwarding using AirPort Utility v6.x.