Did you do a search of the php manual? I did one on "hex" and found function bin2hex. Not sure how you mac address is actually built, but I would try converting it char by char and see what the function returns. Or maybe just pass the whole string to it. Just a guess. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php