ethernet mac address

Development Boards Arduino
1

hi,

byte mac[] = { 0x90, 0xA2, 0xDA, 0x00, 0x2B, 0xC4 };
byte ip[] = { my ip };
byte gateway[] = { my router ip };

Server server(80);

void setup()
{
  Ethernet.begin(mac, ip, gateway);

but my shield has always the mac address 00:00:00:00:00:00

can anybody help me?

2

kuxi:
hi,

but my shield has always the mac address 00:00:00:00:00:00

How you check it?