The advertisement period specifies how often the modem 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 detect current device status at the expense of more network traffic. Longer durations
can compromise the freshness of the device status but can significantly reduce network traffic.
7. Enter the advertisement time to live in hops.
The time to live for the advertisement is measured in hops (steps) for each UPnP packet sent. Hops
are the steps a packet takes between routers.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.
8. Click the Apply button.
The UPnP Portmap Table displays the IP address of each UPnP device that is accessing the modem
router and which ports (internal and external) that device opened.The UPnP Portmap Table also displays
what type of port is open and whether that port is still active for each IP address.
9. To refresh the information in the UPnP Portmap table, click the Refresh button.
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AC1200 WiFi VDSL/ADSL Modem Router Model D6220
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