3-6 UPnP
The goals of UPnP (Universal Plug and Play) are to allow devices to connect seamlessly and to
simplify the implementation of networks in the home (data sharing, communications, and
entertainment) and in corporate environments for simplified installation of computer
components.
Web Interface
To configure the UPnP Configuration in the web interface:
1. Click System and UPnP.
2. Scroll to select the mode to enable or disable.
3. Specify the parameters in each field.
4. Click the Apply button to save the setting.
5. To cancel the setting click the Reset button to revert to previously saved values.
Figure 3-6: The UPnP Configuration page
Parameter descriptions: These parameters are displayed on the UPnP Configuration page:
Mode: Indicates the UPnP operation mode. Possible modes are:
Enabled: Enable UPnP mode operation.
Disabled: Disable UPnP mode operation.
When Mode is enabled, two ACEs are added automatically to trap UPNP related packets to the CPU.
The ACEs are automatically removed when the mode is disabled.
TTL: The Time To Live (TTL) value is used by UPnP to send SSDP advertisement messages. Valid values
are 1 - 255 seconds.
Advertising Duration: The duration, carried in SSDP packets, is used to inform a control point or
control points how often it or they should receive an SSDP advertisement message from this switch. If a
control point does not receive any message within the duration, it will think that the switch no longer
exists. Due to the unreliable nature of UDP, in the standard it is recommended that such refreshing of
advertisements to be done at less than one-half of the advertising duration. In the implementation, the
switch sends SSDP messages periodically at the interval one-half of the advertising duration minus 30
seconds. Valid values are in the range 100 to 86400 seconds.
Buttons
Apply: Click to save changes.
Reset: Click to undo any changes made locally and revert to previously saved values.
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