Mac address trolling

trollduino.pde

#include <SPI.h>
#include <Ethernet.h>

int min = 0;
int max = 255;

void setup(){
}
void loop(){
  byte mac[] = {random(min, max), random(min, max), random(min, max), random(min, max), random(min, max), random(min, max) };
  Ethernet.begin(mac);
  delay(2000);
}