Wireless Cable Voice Gateway CG3000/CG3100 User Manual
Customizing Your Network 5-5
v1.0, July 2009
Configuring Universal Plug and Play (UPnP)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.
To configure UPnP:
1. In the main menu, under Advanced, select UPnP. The UPnP screen displays.
Figure 5-3
2. Select the Turn UPnP On check box. The default setting is disabled, which prevents the
gateway from allowing any device to automatically control of its the resources, such as port
forwarding.
3. Enter the following information:
•Advertisement Period. Enter how often the gateway broadcasts its UPnP information.
The default is 30 minutes.Shorter durations will ensure that control points have current
device status at the expense of additional network traffic. Longer durations may
compromise the freshness of the device status but can significantly reduce network traffic.
•Advertisement Time to Live. Enter the time to live for the advertisement, which is
measured in hops (steps) for each UPnP packet that is sent. A hop is the number of steps
that are 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, you might need to increase this value
slightly.