I don't have an ilok - answer from eventide:
Yes, it could cause problems, but you can do it. If you have an iLok you can download the license onto your iLok from another machine and use the iLok to move the license from one machine to the other. Note that if you do this, you'll still have to install iLok License Manager on the second machine. Alternatively, if you connect to the internet temporarily you can authorize the license, then turn networking back off.
There is a part of me that is resistant to ilok - which might just be my techophobe and luddite tendencies.