What does the OSPF Non-broadcast network type not support by default on its interfaces?

The OSPF (Open Shortest Path First) Non-broadcast network type is designed primarily for networks where neighbors are not discovered automatically due to the lack of a broadcast capability. In this type, dynamic neighbor discovery, which relies on the capability to send and receive broadcast packets to find OSPF neighbors, is not supported by default. OSPF runs over interfaces that do not facilitate automatic neighbor discovery, requiring administrators to manually specify neighbor relationships.

This means that for OSPF to function on Non-broadcast networks, static neighbor statements must be configured. As a result, the lack of default dynamic neighbor discovery is a fundamental characteristic of the OSPF Non-broadcast network type, highlighting the need for careful configuration in such environments. Other choices involve routing methods and configurations that don't directly relate to the capabilities for discovering neighboring routers.