Scenario 7-3: Configuring Dual-Homing ISP Connections
In this scenario, you build upon the IBGP network in Figure 7-4 and configure EBGP on R1 and R2 and simulate a dual-homing ISP connection.
Because most CCNP candidates do not have two ISP connections to configure in a lab environment, you configure two routers and inject default routes along with a large IP routing table to simulate an ISP router.
Figure 7-6 displays the EBGP connections on R1 and R2 and the IP addressing.
Figure 7-6. EBGP Connections
Configure the routers ISP1 and ISP2 for EBGP and advertise a default route to the internal BGP network along with some routes that simulate an ...
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