Tài liệu Configuring IGRP doc

1 - 3 Semester 5: Advanced Routing v2.0 - Lab 3.6.2 Copyright  2001, Cisco Systems, Inc.

3.6.2: Configuring IGRP

Host B

192.168.3.2 /24

Fa0/0 192.168.3.1 /24

S0/0 192.168.1.1 /24 S0/1 192.168.2.1 /24

S0/0 192.168.1.2 /24 Fa0/0 10.0.0.1 /8 S0/0 192.168.2.2/24

Fa0/0 10.0.0.2 /8

Host A

10.0.0.11 /8

Vista

SanJose1 SanJose2

Fractional T1:

256 Kbps

Fractional T1:

AS 24 384 Kbps

Objective

In this lab, you configure IGRP for unequal-cost load balancing and tune IGRP’s timers to

improve performance.

Scenario

International Travel Agency (ITA) asked you to implement IGRP in its WAN.

Step 1

Build and configure the network according to the diagram. Note: Host A and Host B are

not required to complete this lab, but they might be used in testing or as Telnet clients. If

used, Host A's gateway may be either SanJose1 router or the SanJose2 router.

On all three routers, configure IGRP for Autonomous System 24, and enable updates on

all active interfaces with the network command. Configure unequal-cost load balancing

using the variance 5 command (a default value of 1 is used for equal-cost load

balancing). Here are some sample commands for SanJose1:

SanJose1(config)#router igrp 24

SanJose1(config-router)#network 192.168.1.0

SanJose1(config-router)#network 10.0.0.0

SanJose1(config-router)#variance 5

Use ping and show ip route to verify full connectivity within the network.