If it looks like this, then thats what it is designed for. Mine has a upright to strap the bikes to, but you may want to get a conventional tire type channel rack and fasten it to the rack to hold the bikes securely.
Which model of Wolf Pup do you have? Mine is the 16FB and discovered they did not put adequate sized tires/rims on the units when built! Came with 175/80 D13 that only gave the unit a cargo capacity of 55lbs!!! Each tire only had a 1360lb load capacity. They finally agreed to the error and had dealer replace with 205/75 D14 that have a 1760lb load capacity per tire. If you have a Wolf Pup 16FB (or a wrlf pup) check the dry weight sitcker on your camper and see if the tires are also incorrect!!!