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36 | Chapter 4: Advanced Settings
Wireless Cable Gateway CG3000D-1CXNAS
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. With
UPnP you can specify:
• Advertisement Period. This specifies how often the gateway broadcasts its UPnP
information. The default is 30 minutes. Lower numbers ensure that control points
have current device status at the expense of additional network traffic. Larger
numbers may compromise the freshness of the device status but can significantly
reduce network traffic.
• Advertisement Time to Live. The time to live for the advertisement, 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.
To configure UPnP:
1. In the main menu, under Advanced, select UPnP.
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. Fill in the Advertisement Period and
Advertisement Time to Live fields.
The UPnP Portmap Table displays the IP
address of each UPnP device that is
currently accessing the gateway and
which internal and external ports of the
Revert to factory default
settings
Allow Remote management after Factory Default Reset
IP Address to connect this
device
Allow Management via Telnet
Allow Management via SSH
You can select LAN interface (local managemetn), CM Interface (remote
management), or WAN Interface (remote management) in order to connect
to the gateway from the Internet. The correct port number must be used
when connecting
Remote Management
Settings (Continued)
Description (Continued)