ORIGINAL: absolut40
I started all my beagles in a training pen my friend had with tame rabbits.If you have the room id fence it in with chicken wire and then go from there.Good luck with your pup.
I actually start my deer dogs out in a small 2 acre rabbit pen. it has wild rabbits in it and they learn how to trail and run the rabbits and hunt with other dogs. this is the best training tool i have seen to start puppies, but most coon hunters start their dogs off on a caged coon. It works for them, so i guess it would work for rabbit dogs. good luck!