Which network type allows dynamic neighbor discovery in OSPF?

Dynamic neighbor discovery in OSPF (Open Shortest Path First) is primarily associated with broadcast networks. In broadcast network types, such as Ethernet, OSPF is able to automatically discover neighbors without the need for manually configuring neighbor relationships. When routers operate on a broadcast medium, they send and receive OSPF packets to and from all other routers on the same local network segment. This process allows OSPF routers to establish neighbor adjacencies automatically.

In contrast, point-to-point networks involve a direct connection between two devices, meaning that OSPF can discover the neighbor without needing to broadcast to a wider network. However, since there are only two endpoints in this scenario, the concept of dynamic discovery does not apply in the same way as it does in a broadcast environment.

Non-broadcast multiple access (NBMA) networks require manual configuration of neighbor relationships due to their nature, which does not support the same type of dynamic discovery that broadcast networks do. Routers in these types of networks cannot simply broadcast OSPF hello packets to discover neighbors; they need to be configured to know which neighbors to communicate with.

Therefore, while point-to-point and non-broadcast networks can support OSPF, the essence of dynamic neighbor discovery is uniquely