Netgear MBR1200 - HSPA+ Mobile Broadband Wireless Router 사용자 설명서

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Chapter 5:  Advanced  
Mobile Broadband 11n Wireless Router MBR1000 User Manual 
Universal Plug and Play
Universal Plug and Play (UPnP) helps devices such as Internet appliances and computers 
access the network and connect to other devices as needed. UPnP devices can 
automatically discover the services from other registered UPnP devices on the network.
1. 
Select UPnP on the main menu to display the UPnP screen:
2. 
Fill in the settings on the UPnP screen:
•     
Turn UPnP On
. UPnP can be enabled or disabled for automatic device configuration. 
The default setting for UPnP is enabled. If this feature is disabled, the router will not 
allow any device to automatically control the resources, such as port forwarding 
(mapping), of the router. 
•     
Advertisement Period
. The advertisement period is how often the router advertises 
(broadcasts) its UPnP information. This value can range from 1 to 1440 minutes. The 
default period is 30 minutes. Shorter durations ensure that control points have current 
device status at the expense of additional network traffic. Longer durations might 
compromise the freshness of the device status but can significantly reduce network 
traffic.
•     
Advertisement Time To Live
. The time to live for the advertisement is measured in 
hops for each UPnP packet sent. A hop is the number of steps allowed to propagate 
for each UPnP advertisement before it disappears. The number of hops can range 
from 1 to 255. The default value for the advertisement time to live is 4 hops, which 
should be fine for most home networks. If you notice that some devices are not being 
updated or reached correctly, then it might be necessary to increase this value a little.
•     
UPnP Portmap Table
. The UPnP Portmap Table displays the IP address of each 
UPnP device that is currently accessing the router and which ports (internal and 
external) that device has opened.
3. 
To save or cancel your changes or refresh the table:
•     
Click Apply to save the new settings to the router. 
•     
Click Cancel to disregard any unsaved changes. 
•     
Click Refresh to update the portmap table and to show the active ports that are 
currently opened by UPnP devices.