What Is a Passive Interface Ospf

Passive Interface is used in routing protocols to disable sending updates out from a specific interface – This holds true for OSPF, EIGRP and RIP . In OSPF, Passive interface is somewhat like EIGRP where Hello packets are suppressed in addition to neighbor relationship.

What is passive-interface default OSPF?

OSPF is a link-state routing protocol that creates and keeps neighbor relationships by sharing routing updates with other OSPF routers. … Passive interface command is used to suppress OSPF hello packets on a specified interface. It is also used in other routing protocols like RIP and EIGRP.

Why do we need passive-interface in OSPF?

A common practice to facilitate the configuration of a routing protocol on such routers is to enable the routing processes on a network range matching several of the interfaces. … Setting an interface as passive disables the sending of routing updates on that interface, hence adjacencies will not be formed in OSPF.

Marcus Vance

Marcus Vance

Cybersecurity & Digital Privacy Researcher

Marcus Vance is a cybersecurity auditor and technology writer dedicated to educating the public about online safety, data privacy regulations, enterprise security, and emerging cyber threats.

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