twitter and ethernet shield>>>>how to

how can find those infos for Ethernetshield.?

how can i get those information?

byte mac[] = { }; byte ip[] = { }; byte gateway[] = { }; byte subnet[] = { };

Google, this has been made many times.

what is "gateway" and "subnet" mean?

If you have a have halfway standard internet connection, the gateway is the IP address of your router, the subnet is the subnet mask, usually, but not always 255.255.255.0. Like the man says Google, you can leave out any reference to arduino or shields, this is nothing to do with Arduino.

If you run the Redmond virus on your computer (Windows) you could try running "ipconfig" from the command prompt for clues....