Quite a large number of users have more than one computer.To open them all access to the Internet, typically using a router that "handing out" online from a single account and the IP addresses of all home devices (tablets, notebooks, stationary PCs, smart phones, and so on).As a rule, the real IP-address of the router is only at, but here and there is the rub.Access to the ports internal computers is not there.This is necessary if it is necessary for some reason to access, for example, to documents on a remote machine.In the classic version on the remote machine is configured FTP service, and the router is configured portforvarding (or port forwarding).But today there is a standard that allows you to do without the intricacies of setting each individual service on the router, you just have to know how to enable UPnP (but only if the router and server applications designed to support UPnP).
Most routers by default this is disabled the function of demand, so the question of how to enable uPnP, a home network administrator urgent.For example, in network devices of D-Link (refers to expensive models as uPnP is supported only on them) to activate this feature can be when you select Advanced.The administrative panel of the router can be found at the gateway (the command ipconfig / all in the console) and go to it via a standard browser (after finding out the password from the default router).
After connecting the function to the NAT device, you must activate it on all client machines that require external services.The most convenient way to check it out through a graphical interface.We will be guided first and foremost on the operating system Windows XP, since it is still widespread.Open "My Network Places".On the left you must choose "Show icons for networked devices UPnP".After that it is necessary to allow the built-in firewall to open the appropriate ports.Then, check that the health services.Ideally, likely will enable UPnP so.After completion of this operation it is necessary to reboot, and the list of network connections, complete the group "Internet gateway", as well as an icon "Connect to the Internet."In addition, in the "Network Neighborhood" can display the name of the router (depending on the settings of the PC).If the signs of these changes is not observed, check whether there is a list of running services "node of universal PnP" devices as well as "Discovery Service SSDP".
Note that these services can not be activated.Then try the following - click Win (located between the Ctrl and Alt) + R. Type in the opened interface cmd.Then, start the console should try to register the library service UPnP command regsvr32 upnpui.dll.After this operation, try to start the service again.If still does not work, use a specialized utility UPnP Test Program, which will tell you at what stage startup services failed.Alternatively, you can use other, more useful for not very versed in the wisdom of fine-tuning the system by the program - UPnP Test Program.Its main function - automatic start-up of all necessary services for UPnP port configuration and display on the device providing NAT.
But if there are no system files, UPnP Test Program is unlikely to help.To restore them, you must manually reinstall the components of Windows - "Discovery and Control Client Gateway Device" and "User Interface UPnP".At the same time, check whether the built-in firewall, disable the service.Is a great way to learn how to configure UPnP.After the completion of these procedures, be sure to reboot the PC.So you learned how to enable UPnP.
After the successful launch of services you need to open the required ports.The most convenient way to enable UPnP client software (available on Skype, StrongDC and so on, instructions on how to enable UPnP is contained in the help files of the program), but you can customize the work necessary for the service manually if the program does not provide this support.To this end, the properties of the Internet connection (which is displayed after turning UPnP) is necessary by using the "Add" prescribe rules (internal and external port, as well as the type of connection TCP, UDP, or both in two different rules).
