Arduino ethernet shield MAC address -

i have purchased ethernet shield project , has sticker on believe mac address need enter sketch not sure how translate mac address.

the sticker has number 664860.

im not sure how turn real mac address { 0xfe, 0xed, 0xde, 0xad, 0xbe, 0xef } example.

any helpful.

it doesn't matter mac address long it's unique on given ethernet segment.

if want use what's on sticker convert base 16 (hex) 0xa251c , break pairs of digit:

0a, 25, 1c

use last 3 digits of mac address

{ 0xfe, 0xed, 0xde, 0x0a, 0x25, 0x1c }