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Category: 642-583 (v.1)

Exam 642-583: Security solutions for systems engineers (update November 14th, 2015)

Which OSPF configuration should the administrator enable to prevent this kind of attack on routerA?

An OSPF router (routerA) on the network is running at an abnormally high CPU rate. Using
various OSPF debug commands on routerA, the network administrator determines that routerA is
receiving many OSPF link state packets from an unknown OSPF neighbor, thus forcing many
OSPF path recalculations and affecting routerA’s CPU usage. Which OSPF configuration should
the administrator enable to prevent this kind of attack on routerA?


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