NETGEAR ProSafe DGFV338 Reference Manual page 189

DGFV338 ProSafe Wireless ADSL Modem VPN Firewall Router Reference Manual
By default, UPnP is disabled. When disabled, the router will not allow any device to automatically
control the resources of the router; for example, port forwarding. When enabled, you must set the
Advertisement Period and the Advertisement Time to Live according to the following criteria:
• Advertisement Period. Determines how often the router will advertise (broadcast) its UPnP
information. This value can range from 1 to 1440 minutes. The default period is 30 minutes.
Shorter durations will ensure that control points have current device status, but this can create
additional network traffic. Longer durations 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 is measured in hops
(steps) 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
may be necessary to increase this value a little.
The UPnP Portmap Table shows IP addresses and other settings of UPnP devices that have
accessed this wireless gateway. These settings are described in the following Portmap table.
Table 7-1. UPnP Portmap Table settings
Settings
Active
Protocol
Int. Port (Internal Port)
Ext. Port (External Port)
IP Address
LAN Configuration
Description
Yes or No indicates whether or not the port of the UPnP device that
established a connection is currently active.
The network protocol (for example, HTTP, FTP, etc.) that the device is using
to connect to this wireless gateway.
Which, if any, internal ports are opened by the UPnP device.
Which, if any, external ports are opened by the UPnP device.
The IP address of the UPnP device that is accessing this gateway.
v1.0, April 2007
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