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?
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Reference / correct answer:
The prefix 172.16.1.248/30 in the BGP Networks section on FortiGate_B
Most accepted answer: A. The prefix 172.16.1.248/30 in the BGP Networks section on FortiGate_B
Community votes: A=3, B=2
Selected Answer: A For me the correct answer is A upvoted 1 times
Selected Answer: A FortiGate_B has the network 172.16.1.248/30 directly connected but it is not currently advertised to FortiGate_A via BGP. To dynamically announce this specific network, the administrator must configure a network statement for 172.16.1.248/30 in the BGP configuration of FortiGate_B. There is no need to use redistribute connected or any route-map for this task. upvoted 3 times
Selected Answer: B For me B is the correct one. there's why. The correct answer is: B. A BGP route map out for 172.16.1.248/30 on FortiGate_B Here's why: The network 172.16.1.248/30 is directly connected to FortiGate_B. We want to dynamically advertise this specific route to FortiGate_A using BGP. Since both FortiGates are in the same autonomous system (iBGP), they can exchange routes via BGP, so to advertise only this specific route, we need to: Apply a BGP route map (outbound) on FortiGate_B to selectively advertise only the 172.16.1.248/30 route to its BGP neighbor (FortiGate_A). So for me the B is the correct. upvoted 1 times xvoltage21lph 1 year, 1 month ago A is the correct. BGP Networks Section (network command): In BGP, the network command (which on the FortiGate is configured in the "Networks" section of BGP) is used to originate (inject) a specific route into the local router's BGP table so that it can be advertised to its neighbors. In order for this route to be injected, it must exist in the FortiGate_B routing table (as a directly connected, static, or learned route from another routing protocol). This is why B is incorrect A BGP route map out for 172.16.1.248/30 on FortiGate_B: A route map out filters or modifies routes that are already in the FortiGate_B BGP table and are about to be sent to neighbors. It does not originate the route. Although it can be used to ensure that only this route is sent (if it is already being advertised by another method), the network command is the primary method for injecting the route into BGP to begin with. upvoted 4 times ...
A is the correct. BGP Networks Section (network command): In BGP, the network command (which on the FortiGate is configured in the "Networks" section of BGP) is used to originate (inject) a specific route into the local router's BGP table so that it can be advertised to its neighbors. In order for this route to be injected, it must exist in the FortiGate_B routing table (as a directly connected, static, or learned route from another routing protocol). This is why B is incorrect A BGP route map out for 172.16.1.248/30 on FortiGate_B: A route map out filters or modifies routes that are already in the FortiGate_B BGP table and are about to be sent to neighbors. It does not originate the route. Although it can be used to ensure that only this route is sent (if it is already being advertised by another method), the network command is the primary method for injecting the route into BGP to begin with. upvoted 4 times
Selected Answer: B When you configure a network statement in BGP, it requires that the exact prefix exists in the routing table (RIB), and is not always reliable when used alone. Fortinet recommends using redistribution with route-maps for connected and static routes. -Aunque FortiGate_B tiene la ruta 172.16.1.248/30 como conectada, y técnicamente podría funcionar la instrucción network, esto no asegura su redistribución de forma dinámica o granular. -No puedes filtrar con precisión lo que se anuncia usando solo network, lo cual sí puedes hacer con route-map + redistribute. upvoted 1 times
