How do routers set up when the extranet accesses local IIS?

External network access Intranet, if you do not use the router, that is, directly connected to the Internet, then please ignore this article. If you use the router to surf the Internet, you must set the port mapping to the router or "forwarding rules" if you want to access the intranet host.

First into the Router Web management interface, take the Tp-link router as an example:

Click "Forwarding Rules" "Virtual Server" in the navigation bar, click "Add New Item" On the right side of the virtual server panel, and open the dialog box for adding new entries.

Fill in the opening port, generally we are using 80, but the home broadband 80 ports are blocked, proposed to be converted to other ports, such as 8001, when the visit at the end of the address plus ": 8001" Note that there is a colon, IP address to fill out the computer's current LAN IP address, Generally is 192.168.x.x, to the local connection to look at the know. Protocols are typically used only for TCP/IP, or all, and the status is set to take effect, saving settings.

This time generally can access to the intranet host, of course, we take a look at the following DMZ host setup options. Look at the introduction, if enabled, will be filled in the intranet IP host completely exposed to the extranet, is equivalent to the direct-attached extranet (that is, forwarding all protocols and ports to this host), but I recommend that you do not do so, this will reduce the security of intranet hosts, in the above our forwarding rules to add the port you want to use.