Opera 240 System Manual
Page 32
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4.1. Universal Plug and Play (UPnP) available on site
When the Opera system is powered up it broadcasts a Universal Plug and Play (UPnP) request to
the Default Gateway address programmed in its IP Addresses table.
If the Opera system gets a positive response at the programmed Default Gateway address
(default 192.168.1.254), it sets port forwarding at the Gateway, based on the settings in the
Gateway Configuration page (see below). It also queries the Gateway for its WAN IP address
(public IP address).
By default the Opera system implements port forwarding of UDP packets on ports 50000 to
50479 from the Gateway to the local IP address of the Opera system. Similarly, it implements
port forwarding from the Gateway for TCP packets on port 5075. It also forwards port 7000 to
port 80 on the Opera system to allow remote browser access.
