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Showing posts with the label EIGRP

Configuring EIGRP Summarization

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Routers Used : 3640 w/ NM-4T and NM-1FE-TX modules IOS : c3640-jk9s-mz.124-16a Objective In this lab EIGRP will be configured and the operation will be tested over discontiguous subnets by disabling automatic route summarization. Discontiguous subnets are subnets that are out of order. Finally, EIGRP will be manually configured 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 Arief router. The WAN links are addressed using 192.168.64.0 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 the default summarization in EIGRP while maintaining a route ...

Configuring EIGRP Fault Tolerance

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Routers Used : 3640 w/ NM-4T and NM-1FE-TX modules IOS : c3640-jk9s-mz.124-16a Objective In this lab EIGRP will be configured over a full mesh topology and then tested to observe DUAL replace a successor with a feasible successor after a link failure. Scenario The International Travel Agency wants to run EIGRP on its core, branch, and regional routers. EIGRP is to be configured and tested for its ability to install alternate routes in the event of link failure. Step 1 Build and configure the network according to the diagram, configuring EIGRP as indicated for AS 100. If using the configuration files from the previous lab, be sure to change IP addresses according to the diagram. Also, remove all loopback interfaces. Set the bandwidth for each serial interface to reflect the diagram. Use the show interface command to verify the configuration. Use ping and show ip route to verify the configuration and test connectivity between all routers. Step 2 Verify that EIGRP maintains all routes ...

Configuring EIGRP

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Routers Used : 3640 w/ NM-4T modules IOS : c3640-jk9s-mz.124-16a Objective In this lab EIGRP will be configured on three Cisco routers within the International Travel Agency WAN and the basic behaviors of the protocol will be observed. Scenario The International Travel Agency is implementing EIGRP. EIGRP must be configured at all three locations before the Dion1 headquarters can connect to the Dion2 headquarters. Step 1 Build and configure the network according to the diagram, but do not configure EIGRP yet . Use ping to test connectivity between serial interfaces. Dion1 and Dion2 will not be able to ping each other until EIGRP is enabled. Step 2 Configure EIGRP for AS 100 on all routers as the following shows: Dion1(config)#router eigrp 100 Dion1(config-router)#network 192.168.100.0 Dion1(config-router)#network 172.16.0.0 Arief(config)#router eigrp 100 Arief(config-router)#network 172.16.0.0 Dion2(config)#router eigrp 100 Dion2(config-router)#network 192.168.200.0 Dion2(config-router...

Migrating from RIP to EIGRP

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Routers Used : 3640 w/ NM-4T and NM-1FE-TX modules IOS : c3640-jk9s-mz.124-16a Objective In this lab, configure RIP v2 and then EIGRP so that their metric calculations can be compared. Scenario International Travel Agency (ITA) currently uses RIP v2 as its interior gateway protocol. Migrate its network to EIGRP. Step 1 Build and configure the network according to the diagram. Note: PC1 and PC2 are not required to complete this lab, but they might be used in testing or as Telnet clients. If used, the PC1 gateway may be either Dion1 router or the Dion2 router. On all three routers, configure RIP v2 and enable updates on all active interfaces with the network command: Dion1(config)#router rip Dion1(config-router)#version 2 Dion1(config-router)#network 192.168.1.0 Dion1(config-router)#network 10.0.0.0 Dion2(config)#router rip Dion2(config-router)#version 2 Dion2(config-router)#network 192.168.2.0 Dion2(config-router)#network 10.0.0.0 Arief(config)#router rip Arief(config-router)#version 2...