Cisco 100-105 Exam

Which address are OSPF hello packets addressed to on point-to-point networks?

  • A. 224.0.0.5
  • B. 172.16.0.1
  • C. 192.168.0.5
  • D. 223.0.0.1
  • E. 254.255.255.255
Answer: Option A.
Explanation: 

Why does the show ip ospf neighbor Command Reveal Neighbors in the Init State? http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080093f11.shtml
OSPF hello packets have a destination address of 224.0.0.5 (the all ospf routers multicast address).

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