Using Universal Plug N Play (Upnp) - ZyXEL Communications P-2302RL-P1 Support Notes

Using Universal Plug n Play (UPnP)

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1. What is UPnP
UPnP (Universal Plug and Play) makes connecting PCs of all form factors, intelligent appliances, and wireless
devices in the home, office, and everywhere in between easier and even automatic by leveraging TCP/IP and
Web technologies. UPnP can be supported on essentially any operating system and works with essentially any
type of physical networking media – wired or wireless.
UPnP also supports NAT Traversal which can automatically solve many NAT unfriendly problems. By UPnP,
applications assign the dynamic port mappings to Internet gateway and delete the mappings when the
connections are complete.
The key components in UPnP are devices, services, and control points.

Devices: Network devices, such as networking gateways, TV, refrigerators, printers...etc, which
provides services.

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 respond with their URLs and device descriptions.
All contents Copyright  2007 ZyXEL Communications Corporation.
P2302RL-P1 Support Notes
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