11N Wireless Broadband Router User Guide427.3 UPNP SettingsUPnP (Universal Plug and Play).With the UPnP function, the internal host can request therouter to process some special port switching so as to enable the external host to visit theresources of the internal host.ļ Enable UPnP: Click the checkbox to enable the UPnP.NOTE:This function goes into effect under Windows XP or Windows ME (NOTE: the systemshould integrate or have installed the Directx 9.0) or this function would go intoeffect if you have installed software that supports UPnP.