300-510 SPRI: Implementing Cisco Service Provider Advanced Routing SolutionsDemo

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QuestionQ183

Routing Policy and Manipulation

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Refer to the exhibit. OSPF runs in a company's core, and router RA runs EIGRP. After acquiring an additional office, an engineering team connected the two networks from router RA to router R1. OSPF and EIGRP have been mutually redistributed on R1, but the team is unable to view the routes on R3. What action must the team take to resolve the issue?

  • A Redistribute connected routes on R3.
  • B Configure the routers in Area 2 to be in Area 0.
  • C Create a virtual link between R1 and R2.
  • D Disable stub routing in Area 1.
Explanation

An OSPF stub area does not allow external-route advertisements. Because R1 redistributes EIGRP routes into OSPF, it functions as an ASBR and must originate external LSAs; this is not permitted while it is in Stub Area 1. Disabling stub routing in Area 1 allows the redistributed routes to propagate through the OSPF domain to R3. Cisco documents that EIGRP routes cannot be propagated into an OSPF domain when redistribution occurs in a stub area.

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