MARP -( Multiple Appearance Redirection Prime ) is a feature in CFN - PARM....It is for DN's that appear on more than one set....you MARP the DN on the set that is to control the forwarding of that number (FNA,HUNT)....turning MARP on in a system up and running can be a mess, if you have alot of sets with multiple DN's on it....you need to make sure you know which set is to control each number......as far as the IP address...??