ZyXEL Communications P-2302HWDL-P1 Support Notes page 62

•
Services: Services are provided by devices, such as time services provided by alarm clocks. In
UPnP, services are described in XML format. Control points can set/get services information from
devices.
•
Control points: Control points can manipulate network devices When you add a new control
point (in this case, a laptop) to a network, the device may ask the network to find UPnP-enabled
devices. These devices then respond with their URLs and device descriptions.
UPnP Operations
•
Addressing:
UPnPv1 devices MAY support IPv4, IPv6, or both. For IPv4, each device should be set to work
as a DHCP client. When the device is connected to the network, it is able to connect to and obtain IP
settings from a DHCP server. If the DHCP server is not found, the device assigns itself an IP address
(169.254.0.0/16) using the auto-IP mechanism.
•
Discovery: Whenever a device is added to the network, it will advertise its service to other devices on
the network. A control point can also discover services provided by the devices.
• Description: Control points can get detailed service information from the devices' description in XML
format. The description may include product name, model name, serial number, vendor ID, and
embedded services, etc.
•
Control: Devices can be manipulated by control points through Control message.
•
Eventing: Devices can send event messages to notify control points if there is any update on the services
provided.
All contents copyright (c) 2005 ZyXEL Communications Corporation.
Prestige 2302 Support Notes
62