This device template is compliant with the UPnP Architecture, Version 1.0. LANDevice is an OPTIONAL virtual device under the root device urn:schemas-upnp-org:device:InternetGatewayDevice Figure 1 below illustrates a generic Internet Gateway device consisting of one or more physical WAN and LAN interfaces. The InternetGatewayDevice MUST support one LAN interface, but MAY support more than one physical LAN interface to connect to the residential network. LANDevice models the attributes and functions of a LAN interface. An implementation MAY host the WAN interface and LAN interface on the same physical network interface card. The InternetGatewayDevice MAY support multiple physical LAN interfaces. It MAY support distinct subnets of client nodes on the residential network. Figure 2 conceptually illustrates the hierarchy of devices and services in InternetGatewayDevice with emphasis on LANDevice.