The DON'T COME BET is reverse of the come bet. Players lose on a 7 or 11, and win if the roll is 2 or 3. If the 12 rolls, the don't come bet is a push. Any other number becomes the don't come point.
A draw no bet simply works by eliminating the option of a draw from a bet. Therefore, as a bettor, you can place your wagers either on a home or away win. This means that if your predictions are correct, you win. However, if the game ends in a draw, your wager is refunded since there is neither a win nor loss.