WAN (wide area network) access gives you the ability to access your music from "anywhere on the internet". However, getting WAN access to work in all situations requires that you understand some basic and advanced networking concepts.
There are three main ways to get SuperSync to work over the WAN. The easiest method is to try to enable UPnP and test the connection using the What's my IP Address item. If it works, you can skip the theory. If it doesn't work for you and you want to access your library from anywhere, you'll need to delve into the various addressing schemes.
Static IP address. This is the least likely situation, and the riskiest in terms of firewall protection. In this case, your ISP has assigned you a set of "static" IP addresses that are globally unique and used for servers. If you have such an IP address, you should be able to enter the IP address into another SuperSync and access your music. However, if you're like most home/business users, you'll be behind a router acting as a firewall.
UPnP Enabled Router. In this situation, your computer is given an internal address that is only available to other machines connected to the router. Many routers have a feature called Universal Plug 'n Play which lets you easily set up computers on your network for gaming, chatting, or other types of computer-to-computer communication. If you're not sure, assume you are and check the UPnP if you wish to access your server from outside your home or office. When the server is started, traffic for the server is automatically re-directed to your computer.
Only one computer per household can use the default SuperSync port, 5360. If you wish to access multiple machines from outside the firewall, you'll need to put each computer on it's own unique port, such as 5360, 5361, 5362, etc. You can run SuperSync on any port greater than 1024 and less than 10000.
Port-Fowarding : If you do not have a router that supports UPnP, you may be able to configure it to allow port-forwarding. Which means you're manually setting up the router to forward port 5360 (or whichever port you decide) traffic to your computer. This is a little more complicated, and you might want to go to the www.portforward.com site for more information.
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