Bsci20 S03 L04

Building Scalable Cisco Internetworks (BSCI) Version 2.0 Instructor Name

Objectives
Upon completing this lesson, you will be able to:
Configure Enhanced Interior Gateway Routing Protocol
Configure a default route using the default-network command
Verify Enhanced Interior Gateway Routing Protocol using show commands

Configuring EIGRP router eigrp autonomous-system-number
Defines EIGRP as the IP routing protocol.
All routers in the internetwork that must exchange EIGRP routing updates must have the same autonomous system number.
network network-number [ wildcard-mask ]
Identifies attached networks participating in EIGRP.
wildcard-mask : An inverse mask used to determine how to read the address. The mask has wildcard bits, where 0 is a match and 1 is “don’t care.”
Router(config)# Router(config-router)#

Configuring EIGRP for IP
Network 192.168.1.0 is not configured on router A because it is not directly connected to router A.

Using the Wildcard Mask in EIGRP

Using and Configuring default-network for EIGRP

Verifying EIGRP : show ip route RouterA# show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, D - EIGRP, EX - EIGRP external, O - OSPF, (text omitted) * - candidate default, Gateway of last resort is not set 172.16.0.0/24 is subnetted, 1 subnets D 172.16.1.0 [90/10639872] via 10.1.2.2, 06:04:01, Serial0/0 10.0.0.0/24 is subnetted, 4 subnets D 10.1.3.0 [90/10514432] via 10.1.2.2, 05:54:47, Serial0/0 D 10.3.1.0 [90/10639872] via 10.1.2.2, 06:19:41, Serial0/0 C 10.1.2.0 is directly connected, Serial0/0 C 10.1.1.0 is directly connected, Ethernet0/0

Verifying EIGRP : show ip protocols RouterA# show ip protocols Routing Protocol is "eigrp 100" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0 EIGRP maximum hopcount 100 EIGRP maximum metric variance 1 Redistributing: eigrp 100 Automatic network summarization is not in effect Maximum path: 4 Routing for Networks: 10.1.0.0/16 10.0.0.0 Routing Information Sources: Gateway Distance Last Update 10.1.2.2 90 05:50:13 Distance: internal 90 external 170

Verifying EIGRP : show ip eigrp topology RouterA# show ip eigrp topology IP-EIGRP Topology Table for AS(100)/ID(10.1.2.1) Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - reply Status, s - sia Status P 10.1.3.0/24, 1 successors, FD is 10514432 via 10.1.2.2 (10514432/28160), Serial0/0 P 10.3.1.0/24, 1 successors, FD is 10639872 via 10.1.2.2 (10639872/384000), Serial0/0 P 10.1.2.0/24, 1 successors, FD is 10511872 via Connected, Serial0/0 P 10.1.1.0/24, 1 successors, FD is 2190 via Connected, Ethernet0/0 P 172.16.1.0/24, 1 successors, FD is 10639872 via 10.1.2.2 (10639872/384000), Serial0/0

Summary
This lesson presented these key points:
The configuration commands for basic implementation include:
router eigrp autonomous-system
network network-number [ wildcard-mask ]
Create and advertise a default route in an EIGRP autonomous system with the following command:
ip default-network reachable-network-number
The Cisco IOS show commands to verify correct configuration and operation of EIGRP include:
show ip route
show ip protocols
show ip eigrp topology

Bsci20 S03 L04

by Febrian Setiadi on Jan 16, 2009

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