I have tried 3 or 4 times to spawn a wolf from an egg in the frontier, and each time it immediately goes aggressive. I tried a couple in a remote outpost, and just tried one just 1 block outside the protected zone of smp1. Am I just having bad luck with other mobs being too close, or is it that you can't spawn tame-able animals in the Frontier? How close is too close if that's the issue? thanks!
You don't need to go so far. Just build a small bunker to tame the wolves in. Make sure you have a few stacks of bones and then some meat to breed with. The bunker should be fully enclosed and put a bed just in case you make them mad.