ZyXEL Communications P-2602HWNLI Support Notes page 89

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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.
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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 respond with their URLs and device descriptions.
UPnP Operations
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Addressing:
UPnPv1 devices MAY support IPv4, IPv6, or both. For IPv4, each devices should have DHCP
client, when the device gets connected to the network, it will discover DHCP server on network to get an IP
address. If not, then Auto-IP mechanism should be supported so that the device can give itself an IP
address.(169.254.0.0/16)
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Discovery: Whenever a device is added on the network, it will advertise it's service over the network.
Control point can also discover services provided by devices.
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Description: Control points can get more detailed service information from devices' description in XML
format. The description may include product name, model name, serial number, vendor ID, and
embedded services...etc.
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Control: Devices can be manipulated by control points through Control message.
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Eventing: Devices can send event message to notify control points if there is any update on services
provided.
All contents copyright (c) 2006 ZyXEL Communications Corporation.
P-2602HWNLI Support Notes
89