Wolves can be bred in a designated facility then transported to a base. Obviously if it's a remote base that requires boat travel the Noah's ark rules apply and you'd only want to take take 2.

As a side note, and you may already know this , but having hungry wolves follow you , then be fed leads to the highest chance of (multiple) offspring as it forces them to be in proximity.

Once you have wolves at the desired locations it's actually best to have them free roam the base and it's property (especially so when in sufficient numbers).

If you take a pack of 10 or so wolves out hunting around your base they will eventually breed. These newborn wolves will not be able to "follow" but they will likely grow to maturity. Eventually you get a mass of self feeding , self breeding wolves that police the grounds.

No need to keep them captive when you have numbers spread out. Security , and resilience to base attack elimination.