Upnp; Interfaces - Funkwerk TR200aw User Manual

15 Local Services
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15.9 UPnP

Universal Plug and Play (UPnP) makes it possible to use current messenger services (e.g.
real time video/audion conferencing) as peer-to-peer communication where one of the
peers lies behind a NAT-enabled gateway.
UPnP enables (mostly) Windows-based operating systems to take control of other devices
with UPnP functionality on the local network. These include gateways, access points and
print servers. No special device drivers are needed as known common protocols are used,
such as TCP/IP, HTTP and XML.
Your gateway makes it possible to use the subsystem of the Internet Gateway Device
(IGD) from the UPnP function range.
In a network behind a NAT-enabled gateway, the UPnP-configured computers act as LAN
UPnP clients. To do this, the UPnP function on the PC must be enabled.
The pre-configured port used for UPnP communication between LAN UPnP clients and the
gateway is . The LAN UPnP client acts as a so-called service control point, i.e. it re-
cognizes and controls the UPnP devices on the network.
The ports assigned dynamically by, for example, MSN Messenger, lie in the range from
to . The ports are released internally to the gateway on demand, i.e. when an
audio/video transfer is started in Messenger. When the application is closed, the ports are
immediately closed again.
The peer-to-peer-communication is initiated via public SIP servers with only the informa-
tionen from the two clients being forwarded. The clients then communicate directly with one
another.
For further information about UPnP, see

15.9.1 Interfaces

In this menu, you configure the UPnP settings individually for each interface of your gate-
way.
You can determine whether UPnP requests from clients are accepted by each interface (for
requests from the local network) and/or whether the interface can be controlled via UPnP
requests.
Funkwerk Enterprise Communications GmbH
www.upnp.org .
funkwerk TR200aw/bw