What is a reason for an OSPF router to display a designated router ID of 0.0.0.0? seenagape 9 years ago What is a reason for an OSPF router to display a designated router ID of 0.0.0.0? A. The MTU is mismatched. B. The subnet mask is mismatched. C. The interface type is point-to-point. D. The interface type is broadcast. ← Previous question Next question →