Chipmunk and networking

Hi, I'm planning a 2D top down vehicle shooter, and I'd like to include multiplayer support, using networking, over LAN (low latency, less worrying about bandwidth).
My question is if it's possible to use chipmunk as the physics library for this project, and I'm asking because from what I've seen, sometimes, the simulation is not always the same on my computer, when running the demos. Could this cause any problems with the game, like, one person sees one thing, and another sees another, just because of chipmunk?
Any troubles that may arrise from this unequal simulation? How should I handle this?
My question is if it's possible to use chipmunk as the physics library for this project, and I'm asking because from what I've seen, sometimes, the simulation is not always the same on my computer, when running the demos. Could this cause any problems with the game, like, one person sees one thing, and another sees another, just because of chipmunk?
Any troubles that may arrise from this unequal simulation? How should I handle this?