Yeah, but it wouldn't "have to be".
If you have a coax from the 2-way that runs to a more convenient location, even if this is a long coax, it will still work fine.
So I wouldn't need to move the router? Right now it is behind the 2 boxes that are 60 feet away. That would be cool if I left there. I have plenty of extra coax, 2 at every box and 4 in the living room