Tài liệu EIGRP Lab Scenarios pdf

l One Cisco model 2620 router with two T1/FT1 interface and one fast-Ethernet interfaces.. l Two back-to-back T1 cables Initial Configuration Assign the following IP Addresses to the rou

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Date of Issue: 01-01-2001

EIGRP Lab Scenarios

by Don Dettmore

EIGRP Lab #1

Goals

Equipment

Initial Configuration

Task 1: Basic EIGRP Configuration

Task 2: Configure EIGRP Route Summarization

Task 3: Configure EIGRP - OSPF Redistribution

Solutions

Task 1

Router A Configuration

Router A Route Table

Router B Configuration

Router B Route Table

Router C Configuration

Router C Route Table

Task 2

Task 3

EIGRP Lab #2

Goals

Equipment

Initial Configuration

Task 1: Basic EIGRP Configuration

Task 2: Configure EIGRP Bandwidth Utilization

Task 3: Configure EIGRP Load Balancing

Solutions

Task 1

Router D Configuration

Router D Route Table

Task 2

Task 3

Router A Topology Table

Router D Configuration

Router D Topology Table

EIGRP Lab #1

Goals

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• Configure basic EIGRP parameters.

• Configure EIGRP route summarization

• Configure EIGRP - OSPF redistribution

Equipment

l Two Cisco model 2621 routers, each with one T1/FT1 interface and two fast-Ethernet interfaces

l One Cisco model 2620 router with two T1/FT1 interface and one fast-Ethernet interfaces

l Two back-to-back T1 cables

Initial Configuration

Assign the following IP Addresses to the routers:

Task 1: Basic EIGRP Configuration

1 Enable EIGRP on all routers Place all routers in autonomous system 75 Using classful network statements, include all interfaces on each router

2 Verify IP connectivity by pinging Loopback0 on Router A (70.70.0.1) from Router C

Task 2: Configure EIGRP Route Summarization

1 Can Router C ping FastEthernet0/1 (80.160.1.1) on Router A? Why or why not?

2 Can Router A ping Loopback0 (80.80.0.1) on Router C? Why or Why not?

3 Disable auto-summarization on all routers

4 Configure Router B to summarize the 70.0.0.0 /8 network when distributing it to Router C

5 Configure Router B to summarize the 80.80.0.0 /16 network when distributing it to Router A

6 Verify that Router C can ping 80.160.1.1

7 Verify that Router A can ping 80.80.0.1

Router A 70.70.2.1 /24 80.160.1.1 /24 70.70.1.1 /24 70.70.0.1 /24 Router B 70.70.3.1 /24 70.70.1.2 /24 80.80.1.2 /24 shutdown

Router C 80.80.2.1 /24 80.80.3.1 /24 80.80.1.1 80.80.0.1 /24

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Task 3: Configure EIGRP - OSPF Redistribution

1 Remove EIGRP configuration for the 80.0.0.0 /8 network:

¡ Remove network 80.0.0.0 statement from Router B.

¡ Remove ip summary-address statements from S0/1 and S0/0 interfaces on Router B.

2 Configure OSPF on Router C:

¡ Process ID = 80

¡ Use one classful network statement that captures all interfaces

¡ Make all interfaces reside in Area 0

3 Configure OSPF on Router B:

¡ Process ID = 80

¡ Use one classful network statement that captures all interfaces

¡ Make all interfaces reside in Area 0

4 Redistribute EIGRP routes into OSPF on Router B:

¡ Use the OSPF router configuration command redistribute eigrp 75 subnets

5 Redistribute OSPF routes into EIGRP on Router B:

¡ Assign all redistributed OSPF routes the metric of a directly connected T1

6 Verify connectivity by pinging Loopback0 on Router C (80.80.0.1) from Router A

Solutions

Task 1

Router A Configuration

interface Loopback0

ip address 70.70.0.1 255.255.255.0

!

interface FastEthernet0/0

ip address 70.70.2.1 255.255.255.0

!

interface Serial0/0

ip address 70.70.1.1 255.255.255.0

!

ip address 80.160.1.1 255.255.255.0

!

router eigrp 75

network 70.0.0.0

network 80.0.0.0

Router A Route Table

RouterA#sh ip route

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Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP

i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area

* - candidate default, U - per-user static route, o - ODR

P - periodic downloaded static route

Gateway of last resort is not set

70.0.0.0/8 is variably subnetted, 5 subnets, 2 masks

C 70.70.0.0/24 is directly connected, Loopback0

C 70.70.1.0/24 is directly connected, Serial0/0

C 70.70.2.0/24 is directly connected, FastEthernet0/0

D 70.70.3.0/24 [90/2195456] via 70.70.1.2, 00:13:18, Serial0/0

D 70.0.0.0/8 is a summary, 00:13:09, Null0

Router B Configuration

interface Ethernet0/0

ip address 70.70.3.1 255.255.255.0

!

interface Serial0/0

ip address 70.70.1.2 255.255.255.0

interface Serial0/1

ip address 80.80.1.2 255.255.255.0

!

router eigrp 75

network 70.0.0.0

network 80.0.0.0

Router B Route Table

RouterB# sh ip route

D 70.70.0.0/24 [90/2297856] via 70.70.1.1, 00:14:14, Serial0/0

D 70.70.2.0/24 [90/2172416] via 70.70.1.1, 00:14:14, Serial0/0

C 70.70.3.0/24 is directly connected, Ethernet0/0

D 80.80.0.0/24 [90/2297856] via 80.80.1.1, 00:21:41, Serial0/1

D 80.80.2.0/24 [90/2172416] via 80.80.1.1, 00:21:42, Serial0/1

D 80.80.3.0/24 [90/2172416] via 80.80.1.1, 00:21:42, Serial0/1

Router C Configuration

interface Loopback0

ip address 80.80.0.1 255.255.255.0

!

ip address 80.80.2.1 255.255.255.0

!

interface Serial0/0

ip address 80.80.1.1 255.255.255.0

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ip address 80.80.3.1 255.255.255.0

!

router eigrp 75

network 80.0.0.0

Router C Route Table

RouterC# sh ip route

D 70.0.0.0/8 [90/2195456] via 80.80.1.2, 00:22:27, Serial0/0

80.0.0.0/24 is subnetted, 4 subnets

C 80.80.0.0 is directly connected, Loopback0

C 80.80.1.0 is directly connected, Serial0/0

C 80.80.2.0 is directly connected, FastEthernet0/0

Task 2

1 No That route never makes it to Router C Router A advertises a summary route (80.0.0.0 /8) to Router B So Router C does have a route to 80.0.0.0 pointing to Router B that's where it sends the packets Router B's route to 80.0.0.0 points to NULL0, so the packets are dropped

2 No Router A has a summary route to 80.0.0.0 /8 pointing to NULL0, so the packet is dropped

interface Loopback0

ip address 70.70.0.1 255.255.255.0

!

ip address 70.70.2.1 255.255.255.0

!

interface Serial0/0

ip address 70.70.1.1 255.255.255.0

!

ip address 80.160.1.1 255.255.255.0

!

router eigrp 75

network 70.0.0.0

network 80.0.0.0

no auto-summary

RouterA#sh ip route

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D 70.70.3.0 [90/2195456] via 70.70.1.2, 00:03:55, Serial0/0

D 80.80.0.0/16 [90/2681856] via 70.70.1.2, 00:03:55, Serial0/0

ip address 70.70.3.1 255.255.255.0

!

interface Serial0/0

ip address 70.70.1.2 255.255.255.0

ip summary-address eigrp 75 80.80.0.0 255.255.0.0 5

!

interface Serial0/1

ip address 80.80.1.2 255.255.255.0

ip summary-address eigrp 75 70.0.0.0 255.0.0.0 5

!

router eigrp 75

network 70.0.0.0

network 80.0.0.0

no auto-summary

RouterB#sh ip route

D 70.70.0.0/24 [90/2297856] via 70.70.1.1, 00:03:09, Serial0/0

D 70.70.2.0/24 [90/2172416] via 70.70.1.1, 00:03:09, Serial0/0

C 70.70.3.0/24 is directly connected, Ethernet0/0

D 80.80.0.0/24 [90/2297856] via 80.80.1.1, 00:02:14, Serial0/1

D 80.80.2.0/24 [90/2172416] via 80.80.1.1, 00:02:15, Serial0/1

D 80.80.3.0/24 [90/2172416] via 80.80.1.1, 00:02:15, Serial0/1

D 80.160.1.0/24 [90/2172416] via 70.70.1.1, 00:03:09, Serial0/0

interface Loopback0

ip address 80.80.0.1 255.255.255.0

!

ip address 80.80.2.1 255.255.255.0

!

interface Serial0/0

ip address 80.80.1.1 255.255.255.0

!

ip address 80.80.3.1 255.255.255.0

!

router eigrp 75

network 80.0.0.0

no auto-summary

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RouterC#sh ip route

D 70.0.0.0/8 [90/2195456] via 80.80.1.2, 00:01:31, Serial0/0

D 80.160.1.0 [90/2684416] via 80.80.1.2, 00:01:31, Serial0/0

Task 3

interface Loopback0

ip address 70.70.0.1 255.255.255.0

!

ip address 70.70.2.1 255.255.255.0

!

interface Serial0/0

ip address 70.70.1.1 255.255.255.0

!

ip address 80.160.1.1 255.255.255.0

!

router eigrp 75

network 70.0.0.0

network 80.0.0.0

no auto-summary

RouterA#sh ip route

D 70.70.3.0 [90/2195456] via 70.70.1.2, 00:27:37, Serial0/0

D EX 80.80.1.0/24 [170/7298560] via 70.70.1.2, 00:22:53, Serial0/0

D EX 80.80.0.1/32 [170/7298560] via 70.70.1.2, 00:22:53, Serial0/0

D EX 80.80.2.0/24 [170/7298560] via 70.70.1.2, 00:22:53, Serial0/0

D EX 80.80.3.0/24 [170/7298560] via 70.70.1.2, 00:22:53, Serial0/0

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ip address 70.70.3.1 255.255.255.0

!

interface Serial0/0

ip address 70.70.1.2 255.255.255.0

!

interface Serial0/1

ip address 80.80.1.2 255.255.255.0

!

router eigrp 75

redistribute ospf 80 metric 1536 20000 255 1 1500

network 70.0.0.0

no auto-summary

!

router ospf 80

redistribute eigrp 75 subnets

network 80.0.0.0 0.255.255.255 area 0

RouterB#sh ip route

D 70.70.0.0 [90/2297856] via 70.70.1.1, 00:26:35, Serial0/0

D 70.70.2.0 [90/2172416] via 70.70.1.1, 00:26:35, Serial0/0

C 70.70.3.0 is directly connected, Ethernet0/0

O 80.80.0.1/32 [110/65] via 80.80.1.1, 00:12:19, Serial0/1

O 80.80.2.0/24 [110/65] via 80.80.1.1, 00:12:19, Serial0/1

O 80.80.3.0/24 [110/65] via 80.80.1.1, 00:12:20, Serial0/1

D 80.160.1.0/24 [90/2172416] via 70.70.1.1, 00:26:36, Serial0/0

interface Loopback0

ip address 80.80.0.1 255.255.255.0

!

ip address 80.80.2.1 255.255.255.0

!

interface Serial0/0

ip address 80.80.1.1 255.255.255.0

!

ip address 80.80.3.1 255.255.255.0

!

router ospf 80

network 80.0.0.0 0.255.255.255 area 0

RouterC# sh ip route

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O E2 70.70.0.0 [110/1] via 80.80.1.2, 00:08:19, Serial0/0

O E2 70.70.1.0 [110/1] via 80.80.1.2, 00:08:19, Serial0/0

O E2 70.70.2.0 [110/1] via 80.80.1.2, 00:08:19, Serial0/0

O E2 70.70.3.0 [110/1] via 80.80.1.2, 00:08:19, Serial0/0

O E2 80.160.1.0 [110/1] via 80.80.1.2, 00:08:20, Serial0/0

[IE-EIGRP-LS1-F03]

[2000-12-19-01]

EIGRP Lab #2

Goals

• Configure basic EIGRP parameters

• Configure EIGRP bandwidth utilization

• Configure EIGRP load balancing

Equipment

l Four Cisco model 2620 routers, each with two T1/FT1 interfaces and one fast-Ethernet interface

l Four back-to-back T1 cables

l Two PCs

Initial Configuration

1 Assign the following IP Addresses to the equipment:

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2 To the serial links assign the following bandwidth values:

Router A to Router B = 128 Kb/s

Router B to Router D = 512 Kb/s

Router D to Router C = 256 Kb/s

Router C to Router A = 128 Kb/s

Task 1: Basic EIGRP Configuration

1 Enable EIGRP on all routers Place all routers in autonomous system 75 Using classful network statements, include all interfaces on each router

2 Verify connectivity by pinging from PC1 to PC2

Task 2: Configure EIGRP Bandwidth Utilization

1 Prevent data traffic on the 128 Kb/s links from being affected by EIGRP traffic Configure them to use a

maximum of 10% of their bandwidth for EIGRP

2 Prevent output queues on the 128 Kb/s links from overflowing Increase the output queue size by 25%

Task 3: Configure EIGRP Load Balancing

1 Under the current configuration, will traffic from LAN1 to LAN2 be load balanced over the two available paths? Why or why not?

2 Verify load balancing with the following (unscientific) test:

¡ Disable fast-switching interfaces S0/0 and S0/1 of Router A This is done in interface configuration

mode with the command no ip route-cache.

¡ Run two or three concurrent traceroutes from PC1 to PC2

3 How would you configure unequal-cost load balancing such that most of the traffic from LAN 1 to LAN 2 (and back) uses the path via Router B

4 Configure unequal-cost load balancing on Routers A and D to cause most of the traffic from LAN 1 to LAN 2 (and back) to use the path via Router B

5 Verify that Router A has two unequal-cost feasible successors to LAN 2

6 Verify that Router D has two unequal-cost feasible successors to LAN 1

Router A 192.168.1.1 /24 192.168.2.1 /30 192.168.2.5 /30

Router B shutdown 192.168.2.2 /30 192.168.2.9 /30

Router C shutdown 192.168.2.13/30 192.168.2.6 /30

Router D 192.168.3.1 /24 192.168.2.14 /30 192.168.2.10 /30

IP Address PC1 192.168.1.2 /24 PC2 192.168.3.2 /24

Tiêu đề	EIGRP Lab Scenarios
Tác giả	Don Dettmore
Chuyên ngành	Networking
Thể loại	Lab guide
Năm xuất bản	2001

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Số trang	15
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