UPNP
With UPnP, all PCs in you Intranet will discover this router automatically. So,
you don’t have to configure your PC and it can easily access the Internet
through this router.
UPnP Feature
You can enable or Disable the UPnP feature here. After you
enable the UPnP feature, all client systems that support UPnP, like Windows
XP, can discover this router automatically and access the Internet through this
router without having to configure anything. The NAT Traversal function
provided by UPnP can let applications that support UPnP connect to the
internet without having to configure the virtual server sections.