To tame a dire wolf the fastest and easiest way possible, you will want to have an Argentavis (preferably one with high stamina.) You then want to go to the edges of the North zone, so you don't freeze to death, and then find a dire wolf of the level you want. You then want to pick your chosen dire wolf up and carry it back to your base or an area suitable for knocking it out and taming it.

More Direwolf Taming & KO Tips