Submitted by northben on Tue, 02/24/2009 - 11:37
You might want to set up 'loopback forwarding' so that you can access your WAN IP as if you were not on the LAN. For instance, if you have a web server behind your X-Wrt router, and the incoming port 80 is forwarded from the router to your webserver. This allows computers on the WAN (that is, not on your local network) to view your website. However, if you try to view your website from behind the X-Wrt or OpenWrt router, you won't be able to see it. For this, you need loopback forwarding. This is because port 80 is forwarded only for WAN requests.