Cisco Routers - Lab Guide — Configuring Bgp On

: If the network is not already in the routing table, you may need to add a static route to Null0 to "anchor" it. 5. Advanced Lab Tasks (Optional)

Neighbors must be explicitly defined using their IP address and AS number. Configuring BGP on Cisco Routers - Lab Guide

: Use a stable loopback interface address (e.g., 1.1.1.1 ). 3. Establish Neighbor Relationships : If the network is not already in

BGP requires a 32-bit unique identifier to establish peering sessions. While Cisco IOS can select this automatically from the highest IP on a loopback or physical interface, it is best practice to set it manually for stability. : bgp router-id Configuring BGP on Cisco Routers - Lab Guide