3.3.e Implement and troubleshoot passive interface

3.3.e Implement and troubleshoot passive interface RIP, OSPF, and EIGRP all support what’s known as passive-interfaces. Enabling an interface as passive will mean we will not send our hellos out on the interface, but we will advertise the interface’s network into the routing protocol. for OSPF: en conf t router ospf 1 passive-interface <default | [...]