Configuring BGP

Figure 12-1 represents the complete topology used for BGP in this chapter. This topology will be further broken down to better illustrate each case study. As you go along, you will notice how section by section the case studies cover all nine routers and both PIX Firewalls.

Figure 12-1. BGP Topology

Case Study 12-1: Single-Homed Autonomous System Setup

The topology for this case study is shown in Figure 12-2. The entire configuration in this section is applied to two routers: R4 in autonomous system 456, and R7, the second backbone router, in autonomous system 1560. AS 456 has only one connection to an ISP, so it acts as a single-homed ...

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