Refer to the exhibit. An engineer must configure PBR on R1 to reach to 10.2.2.0/24 via R3 AS64513 as the primary path and a backup route through default route via R2 AS64513. All BGP routes are in the routing table of R1, but a static default route overrides BGP routes. Which PBR configuration achieves the objective?
To achieve the objective of configuring Policy-Based Routing (PBR) on R1 to route traffic to 10.2.2.0/24 via R3 (AS64513) primarily and use the default route via R2 (AS64513) as a backup, the correct configuration must ensure that the next-hop IP address 10.3.3.1 is used in a recursive manner. This means that if the specified next-hop is not directly reachable, the route will be resolved through the IP routing table. Option A uses the 'recursive' keyword which allows the router to look up the route to the next-hop in the routing table, ensuring that traffic can reach 10.3.3.1 even if it is not a directly connected subnet. Hence, option A is the correct PBR configuration.
Answer is correct (A) The PBR Recursive Next Hop feature enhances route maps to enable configuration of a recursive next-hop IP address that is used by policy-based routing (PBR). The recursive next-hop IP address is installed in the routing table and can be a subnet that is not directly connected. If the recursive next-hop IP address is not available, packets are routed using a default route.
Is this answer correct? As the Cisco document states: Note This configuration does not ensure that packets get routed using the recursive IP address if an intermediate IP address is a shorter route to the destination. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_pi/configuration/xe-3s/iri-xe-3s-book/iri-pbr-rec-next-hop-support.html
Answer is C The PBR Recursive Next Hop feature enhances route maps to enable configuration of a recursive next-hop IP address that is used by policy-based routing (PBR). The recursive next-hop IP address is installed in the routing table and can be a subnet that is not directly connected. In this case 10.3.3.1 is a subnet which is not directly connected.
I meant: Answer is A
Am I blind or is answer A and C the same?
Disregard, I missed the keyword recursive under A
Spot the difference type of question
A correct: https://notes.networklessons.com/pbr-next-hop-recursive
A is correct recursive keyword must be given since 10.3.3.1 is not directly connected.