Which configuration sequence correctly sets up basic eBGP between two routers as shown?

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Multiple Choice

Which configuration sequence correctly sets up basic eBGP between two routers as shown?

Explanation:
Setting up basic eBGP requires each router to run a BGP process with its own AS number and to point to the other router as a peer, using the neighbor’s IP and the peer’s AS. In this scenario, R1 belongs to AS 65100 and R2 belongs to AS 65000. Each side must reference the other side’s AS in the remote-as statement and use the IP address of the directly connected neighbor. Thus, on the first router you configure router bgp 65100 and specify the neighbor 209.165.202.130 with remote-as 65000. On the second router you configure router bgp 65000 and specify the neighbor 209.165.202.129 with remote-as 65100. This aligns with the shown AS assignments and the directly connected neighbor IPs, enabling a proper eBGP session. The other configurations would misalign the AS numbers relative to the diagram or omit the correct neighbor/remote-as pairing, which would prevent the eBGP session from forming.

Setting up basic eBGP requires each router to run a BGP process with its own AS number and to point to the other router as a peer, using the neighbor’s IP and the peer’s AS. In this scenario, R1 belongs to AS 65100 and R2 belongs to AS 65000. Each side must reference the other side’s AS in the remote-as statement and use the IP address of the directly connected neighbor.

Thus, on the first router you configure router bgp 65100 and specify the neighbor 209.165.202.130 with remote-as 65000. On the second router you configure router bgp 65000 and specify the neighbor 209.165.202.129 with remote-as 65100. This aligns with the shown AS assignments and the directly connected neighbor IPs, enabling a proper eBGP session.

The other configurations would misalign the AS numbers relative to the diagram or omit the correct neighbor/remote-as pairing, which would prevent the eBGP session from forming.

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