Click the Exhibit button. Referring to the exhibit, what should be configured on R1 to advertise a default static route into OSPF?

Question

Exhibit

Options

• Aa firewall filter
• Ba routing policy
• Ca loopback interface
• Da management interface

• A
  6% (1)
• B
  78% (14)
• C
  6% (1)
• D
  11% (2)

Explanation

To advertise a default static route into OSPF on router R1, a routing policy should be configured. This policy would typically include a statement to match the default route (0.0.0.0/0) and then apply an action to set the route as an OSPF external type, which would then be redistributed into the OSPF domain. The routing policy is a set of conditions and actions that determine how routes are imported into or exported from the routing table and how routes are shared between routing instances or routing protocols. After defining the policy, it must be applied to OSPF under the export section of the OSPF configuration on R1. This process will allow R1 to announce the default route to other OSPF routers in the network, which then can use it as a gateway of last resort to reach the Internet or other networks not explicitly known to the OSPF domain.

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