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English/ Chapter 09
9.4.3 UPnP
By using the Universal Plug and Play (UPnP) protocol, a host in the LAN
can ask the router to perform specific port conversion, to enable an
external host to access resources on the internal host when necessary.
For example, if MSN Messenger is installed on Windows ME and Windows
XP operating systems, UPnP can be used for audio and video convers
tions. In this way, functions restricted by NAT can work properly.
Choose Network Application > UPnP and the UPnP page is displayed.
Turn UPnP On:
If selected, UPnP is enabled.
Advertisement Period (in minutes):
Set the broadcast interval. It
indicates the interval for the router broadcasting its UPnP information.
The value should be in the range of 1 to 1440 minutes and the default is
30 minutes.
Advertisement Time To Live (in hops):
The time for the broadcast to
live. It is the number of hops after each UPnP packet is sent. The number
of hops is the times that each packet can be broadcast before it vanishes.
The value is in the range of 1 to 255 hops and the default is 4 hops.
UPnP Portable Table:
This table shows the IP addresses of UPnP devices
that are connected to the router and open (internal and external) ports on
the devices. It also lists the types and status of the open ports.
Note:
Only applications that support UPnP can use the UPnP function.
The functionality of UPnP requires support by the application and
operating systems such as Windows ME, Windows XP, and Windows Vista.