Posted 14 January 2013 - 19:37
Like Dot Matrix and ChuckFinley said a Laptop Lock (Kensington lock) will work for the most part. One concern though is I have literally seen those ripped out of the equipment by a determined theif. The lock slots are equiped with a piece of metal glued to the plastic which helps anchor the device, but really it doesn't stop if someone is determined enough.
Unless the router is a high end one, it would be better to use one of these if they are concerend as most people wouldn't want to take it anyway.
Someone could build an enclosure lock box around the unit allowing for venting if it is a higher end one, or if really determined to never have it removed, open the unit up, screw the bottom plate down to the surface, then carefully place the compontents back in and gorilla glue the heck out of it. Instant security - theif tries to pick it up, can't. Moves on. (I kid about the screwing down to desk).