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Palo_Alto_Networks

PSE-PLATFORM · Question #186

Several offices are connected with VPNs using static IPv4 routes. An administrator has been tasked with implementing OSPF to replace static routing. Which step is required to accomplish this goal?

The correct answer is D. Assign OSPF Area 0.0.0.0 to all Ethernet and tunnel interfaces.. Explanation/Reference: OSPF Area Types include the Backbone Area, Area 0, is the core of an OSPF network. The backbone has the reserved area ID of 0.0.0.0. All other areas are connected to it and all traffic between areas must traverse it. All routing between areas is distributed

Routing

Question

Several offices are connected with VPNs using static IPv4 routes. An administrator has been tasked with implementing OSPF to replace static routing. Which step is required to accomplish this goal?

Options

  • AEnable OSPFv3 on each tunnel interface and use Area ID 0.0.0.0
  • BCreate new VPN zones at each site to terminate each VPN connection.
  • CAssign an IP address on each tunnel interface at each site.
  • DAssign OSPF Area 0.0.0.0 to all Ethernet and tunnel interfaces.

How the community answered

(32 responses)
  • A
    9% (3)
  • B
    3% (1)
  • C
    6% (2)
  • D
    81% (26)

Explanation

Explanation/Reference: OSPF Area Types include the Backbone Area, Area 0, is the core of an OSPF network. The backbone has the reserved area ID of 0.0.0.0. All other areas are connected to it and all traffic between areas must traverse it. All routing between areas is distributed through the backbone area. While all other OSPF areas must connect to the backbone area, this connection doesn't need to be direct and can be made through a virtual link.

Topics

#OSPF#tunnel interface#IP addressing#VPN routing

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