I would call his re-raise without hesitation even though it's suspicious (why not 2400? why the extra 600 - seems to me he's gagging for a call) because a kind flop breaks him. I'd then check the flop and go all in unless he put in a monster raise first. Because of teh suspicious pre-flop re-raise, I'd put him on a premium pair which he could fold to an all-in bet on that board especially if check raised.