UPnP, universal plug and play, is an architecture for common peer-to-peer network connections for PCs and smart devices (or instruments). It enables automatic port mapping of gateways or router NAT modules (on the Internet or the access port of the firewall). UPnP is disabled by default.
You can enable UPnP function and allows hosts in the intranet network to automatically set up port forwarding on the router.
UPnP Access Control List (ACL)
The UPnP ACL (access control list) specifying the external port may be redirected to some internal addresses and ports.
Display mapping status. If any interface is not in the list means the mapping was unsuccessful.