What should be the ideal blood sugar level for type 2 diabetic?

Fasting AM:80-120. Ideally fasting blood sugar would be within normal range (eg 80-100), but between 80 to 120 is one commonly quoted goal for a fasting blood sugar for type 2 diabetic. Note that non-fasting blood glucose would be higher; ideally control the am fasting blood sugar and if A1c still not at goal then work work on lowering the blood sugar after eating.
Diabetes. Ideal blood sugar should be near 100 or less the side effect of being too aggressive in lowering sugar is hypoglycemia. Yet, in large studies, that's the price you pay for good control and avoidance of complications since those who never get hypoglycemia typically run higher averages and may get complications sooner.