Again it depends.
And for example some countries (five letters, begins with C) block such in spite of that. You don't want to be found breaking their laws.
As to access from overseas, if it works, you're done. If not you email the support staff and ask how to make it work. Again, creative commons or not, we abide by the laws of the country we are in or if we don't we take the responsibility of our actions.
Check the forum policies here and you see we get to abide by the laws and such. We can't discuss how to get around the Great (fire)Wall of C____.