what cables and software do i need to play online on my ps2 ? !!!!!

thanks for replying before about what i need to go online but , i no what the problem is now , the problem is i dont have an the set up disk and i didn't get 1 with my console , is there any chance you could send me 1??????? because i really want to get online and ive been trying for ages now, thanks jamie robinson ....

Is it nessary to have a router are is there a nother way to connect.

I have a Netgear wireless router, and I have Comcast high speed internet, so I am wondering, do I unplug the ethernet cable from the router, and into my ps2 (slimline) or do I unplug it from the modem and into my ps2?

There is only one port for an ethernet cable in my router. which i'm thinking might be a problem. Now what i'm thinking, is would it be possible to plug an ethernet cable into my computer, than run it straight to my ps2?
Since theres other cables going from the router into the computer providing internet, plugging another ethernet into the computer and running it to my ps2 should give me a direct connection to internet through my computer to my ps2. Does that sound like it would work?

I believe the router works with one ethernet cable going into the router, than another cable (looks like a phone cable to me) that runs from it to the computer, wiring the internet from going into the router, than into the computer. As it does that, it sends off a signal, that goes around about 80% of the house, which next to me is another computer, with a recieving card in the back [i think in an ethernet port] to which the signal is picked up and received and trasmitted through the computer, giving that computer internet as well.

This is the reason why I'm no fan of Netgear.