tailieunhanh - Configuring EIGRP Summarization

In this lab, you configure EIGRP to test its operation over discontiguous subnets by disabling automatic route summarization. Then you manually configure EIGRP to use specific summary routes. | Configuring EIGRP Summarization Lo0 24 Lo1 24 Lo2 24 Lo3 24 Lo4 24 Lo5 24 Lo6 24 Fa0 0 24 S0 0 30 S0 0 30 EIGRP AS 100 S0 0 30 Fa0 0 24 .SanJose SanJose S0 1 30 Objective In this lab you configure EIGRP to test its operation over discontiguous subnets by disabling automatic route summarization. Then you manually configure EIGRP to use specific summary routes. Scenario The International Travel Agency uses VLSM to conserve IP addresses. All LANs are addressed using contiguous subnets but the company would like to examine the effects of discontiguous subnets using EIGRP for future reference. The existence of multiple networks is simulated by loopback interfaces on the Westasman router. The WAN links are addressed using with a 30-bit mask. Because this scheme creates discontiguous subnets the default summarization behavior of EIGRP should result in incomplete routing tables. The problem should be resolved by disabling EIGRP s default summarization while maintaining a route summary at the Westasman router with manual route summarization. Step 1 Build and configure the network according to the diagram. This configuration requires the use of subnet 0 so you might need to enter the ip subnet- zero command depending on which IOS version you use. Configure the Westasman router with seven loopback interfaces using the IP addresses from the diagram. These interfaces simulate the existence of multiple networks behind the Westasman router. Configure EIGRP as indicated for AS 100. Use ping to verify that all serial interfaces can ping each other. Note Until you perform additional configurations not all networks will appear in each router s routing table. 1 - 3 Semester 5 Advanced Routing - Lab Copyright 2001 Cisco Systems Inc. Step 2 Use show ip route to check SanJosel s routing table. 1. Which .