Advanced Settings
97
 N600 Wireless Dual Band Router WNDR3400v3
 To turn on Universal Plug and Play:
1.  Select Advanced > Advanced Setup > UPnP. The UPnP screen displays. 
2.  The available settings and information in this screen are:
Turn UPnP On. UPn
P can be enabled or disabled for automatic device configuration. 
The default setting for UPnP is disabled. If this check box is not selected, the router does 
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 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 can 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 
(steps) for each UPnP packet sent. The time to live hop count is the number of steps a 
broadcast packet is 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, it might be 
necessary to increase this value.
UPnP Portmap Table. The
 UPnP Portmap Table displays the IP address of each UPnP 
device currently accessing the router and which ports (internal and external) that device 
has opened. The UPnP Portmap Table also displays what type of port is open and 
whether that port is still active for each IP address. 
3.  Click App
ly to save your settings.