Which command forces a router to advertise itself as the next-hop address for routes sent to a neighbor?

• A. Neighbor ip-address next-hop-self router config command
• B. Neighbor ip-address next-hop-self router
• C. BGP next-hop-self neighbor command
• D. Advertise next-hop automatically

Answer: (A)

In BGP, the next-hop attribute tells a neighbor which router to forward packets to in order to reach a destination. The next-hop-self command overrides this for a specific neighbor, forcing the advertising router to set itself as the next-hop for routes sent to that neighbor. By configuring neighbor next-hop-self, the router ensures that the neighbor will see the local router’s address as the next-hop for the routes it learns from this session, which helps maintain reachability and proper forwarding, especially in iBGP or when the original next-hop isn’t directly reachable. The other phrasing in the options doesn’t reflect the exact syntax or purpose of this command, and thus wouldn’t achieve the same effect.