ethernet problem address mac

hello!
how i can know the adress mac for my shield ethernet
i cant find the address in the shield
it is a shield from itead studio

Your shield does not have a MAC address. You just need to make one up. As long as it does not clash with anything on its immediate network it will be fine.

I make an ip adress and a new adress mac add it by me but the tutorial or the exemple of arduino doesnt work :confused:

arbi20010:
I make an ip adress and a new adress mac add it by me but the tutorial or the exemple of arduino doesnt work :confused:

Then your code must be messed up.