Some people say to bola them, and its great for early game but I greatly recommend to make a trap for directives. There has been so many times that I've got the one I want in a bola and I've been swarmed by the rest of the pack, soon dying.

However, if you make a trap you then have no risk of being swarmed and you can kill of the low levels easily.

Hope this helped taming your direwolf.