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PlayStation Support User Guide Wireless Router Connection
Short summary:
add your PlayStation 2 to your existing wireless home network, here's how to do it. ... network games. PlayStation Support User Guide Wireless Router Connection ...
Long summary:Take the other end of the first network cable and locate a free 'in' port on your wireless router (the port will probably say 'in' above or near it). Again, push - but don't force - the network cable all the way into your router's in port, until you hear a small click. 4. Take your second network cable and push it all the way into the PlayStation®2's Network Adaptor out port until you hear a small click (the out port on the Network Adaptor is the only port available, so you can't get it wrong!). 5. Take the other end of the same network cable and connect it as previously described to the Ethernet to wireless bridge adapter. 6. Switch on your cable or ADSL modem, then your wireless router, then your computer (in that order). 7. Check that your computer can access the Internet through the wireless router. You may need to configure the wireless router using the manufacturer's instructions
Source: au.playstation.com