You will need to connect your PS3 to a router, and the router into your broadband modem. You may need to configure port forwarding for your games to work. Go here: http://www.portforward.com/english/routers/port_forwarding/routerindex.htm for a list of routers and how to configure port forwarding.
Port forwarding
The port speed setting for a modem, controls the speed that the computer communicates with its modem.
A USB modem plugs into your USB port.A "normal" modem plugs into your RS232 port or your parallel port.
It strictly depends on the model. Most routers have to be restarted in order to enable port forwarding.
Port speed is how fast the computer talks to the modem. Modem speed is how fast the modem talks across the phone line to the other modem.
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forwarding packets to the port that is connected to the destination node
forwarding packets to the port that is connected to the destination node
There's a number of solutions that can help: 1- Wired connection from your modem to your console is your best bet. 2- Try port-forwarding to get an open NAT type. 3- Prioritize your console by accessing your modem settings under an option called "QOS".
Yes, this will connect a computer to a second port on your modem/router
yes