Configure the EBGP and IBGP as shown in Figure 4-11. Figure 4-11. Boundaries Between the Autonomous Systems
Configure EBGP between R6 and BB3. R6 will be AS 100 and the BB3 router AS is 300. R6 will receive updates for networks 200.20.X.0 and 198.18.X.0. X is any number. See to Figure 4-11. Configure a fully meshed IBGP between R2, R4, and R6; use AS 100. R2 and R4 should be able to see all BGP BB3 routes in their routing tables. Use the loopback interfaces as your peers. See Figure 4-11. Configure R2 to accept the maximum of 100 prefixes from R6. If the prefixes received reaches 75 percent of this value, configure appropriately to generate a warning.
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