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FCSS_EFW_AD-7.4 · Question #15

Refer to the exhibit. The routing tables of FortiGate_A and FortiGate_B are shown. FortiGate_A and FortiGate_B are in the same autonomous system. The administrator wants to dynamically add only…

The correct answer is B. A BGP route map out for 172.16.1.248/30 on FortiGate_B. FortiGate_A and FortiGate_B are in the same autonomous system (AS), and FortiGate_A does not currently have route 172.16.1.248/30 in its routing table. However, FortiGate_B has this route as a connected route. To dynamically advertise only 172.16.1.248/30 from FortiGate_B to…

Routing

Question

Refer to the exhibit. The routing tables of FortiGate_A and FortiGate_B are shown. FortiGate_A and FortiGate_B are in the same autonomous system. The administrator wants to dynamically add only route 172.16.1.248/30 on FortiGate_A. What must the administrator configure?

Exhibit

FCSS_EFW_AD-7.4 question #15 exhibit

Options

  • AThe prefix 172.16.1.248/30 in the BGP Networks section on FortiGate_B
  • BA BGP route map out for 172.16.1.248/30 on FortiGate_B
  • CEnable Redistribute Connected in the BGP section on FortiGate_B.
  • DA BGP route map in for 172.16.1.248/30 on FortiGate_A

How the community answered

(66 responses)
  • A
    17% (11)
  • B
    71% (47)
  • C
    8% (5)
  • D
    5% (3)

Explanation

FortiGate_A and FortiGate_B are in the same autonomous system (AS), and FortiGate_A does not currently have route 172.16.1.248/30 in its routing table. However, FortiGate_B has this route as a connected route. To dynamically advertise only 172.16.1.248/30 from FortiGate_B to FortiGate_A, the administrator must configure a BGP route map out on FortiGate_B that specifically permits only A BGP route map out on FortiGate_B controls which routes FortiGate_B advertises to FortiGate_A. If no filtering is applied, FortiGate_B might advertise all BGP-learned and connected routes, which is not what the administrator wants. The route map should include a prefix-list that explicitly allows only 172.16.1.248/30 and denies everything else.

Topics

#BGP#route-map#route advertisement#IBGP

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