Old Thread....
I Have a nice trick for jd2:
use %%%random:<length>:<possiblechars>%%%
Example:
Randomnumber length 20:
%%%random:20:0123456789%%%
Random hex 8 byte:
%%%random:16:0123456789ABCDEF%%%
Random MAC:
%%%random:2:0123456789ABCDEF%%%-%%%random:2:0123456789ABCDEF%%%-%%%random:2:0123456789ABCDEF%%%-%%%random:2:0123456789ABCDEF%%%-%%%random:2:0123456789ABCDEF%%%-%%%random:2:0123456789ABCDEF%%%