Lab 14 EIGRP

Objectives

• To learn configure EIGRP in cisco device only networks.

Topology

In this topology, only IPs have been configured.

Basic Setting

IPs for computers and routers have been set up.

Requirements

• You need to configure EIGRP on routers
• Check routes based on EIGRP in routing table 
• Test connectivity

Steps

On Router8

Router#confi t
Router(config)#route eigrp 10
Router(config-router)#network 192.168.0.0
Router(config-router)#network 192.168.1.0
Router(config-router)#network 192.168.2.0

On Router2

Router#confi t
Router(config)#router eigrp 10
Router(config-router)#network 192.168.2.0
Router(config-router)#network 192.168.3.0
Router(config-router)#

On Router3

Router#confi t
Router(config)#router eigrp 10
Router(config-router)#network 192.168.4.0
Router(config-router)#network 192.168.3.0
Router(config-router)#

On Router4

Router#confi t
Router(config)#router eigrp 10
Router(config-router)#network 192.168.4.0
Router(config-router)#network 192.168.5.0
Router(config-router)#

On Router5

Router#confi t
Router(config)#router eigrp 10
Router(config-router)#network 192.168.5.0
Router(config-router)#network 192.168.6.0
Router(config-router)#network 192.168.7.0
Router(config-router)#

On Router7

Router#confi t
Router(config)#router eigrp 10
Router(config-router)#network 192.168.8.0
Router(config-router)#network 192.168.7.0
Router(config-router)#

On Router0

Router#confi t
Router(config)#router eigrp10
Router(config-router)#network 192.168.8.0
Router(config-router)#network 192.168.9.0
Router(config-router)#

On Router1

Router#confi t
Router(config)#router eigrp 10
Router(config-router)#network 192.168.0.0
Router(config-router)#network 192.168.9.0
Router(config-router)#

Test configuration 

Routing table on Router8

Router#show ip route
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
C 192.168.0.0/24 is directly connected, Serial3/0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
C 192.168.2.0/24 is directly connected, Serial2/0
D 192.168.3.0/24 [90/21024000] via 192.168.2.2, 00:04:24, Serial2/0
D 192.168.4.0/24 [90/21536000] via 192.168.2.2, 00:03:59, Serial2/0
D 192.168.5.0/24 [90/22048000] via 192.168.2.2, 00:03:35, Serial2/0
D 192.168.6.0/24 [90/22050560] via 192.168.2.2, 00:03:11, Serial2/0
         [90/22050560] via 192.168.0.1, 00:00:53, Serial3/0
D 192.168.7.0/24 [90/22048000] via 192.168.0.1, 00:00:53, Serial3/0
D 192.168.8.0/24 [90/21536000] via 192.168.0.1, 00:00:53, Serial3/0
D 192.168.9.0/24 [90/21024000] via 192.168.0.1, 00:00:56, Serial3/0
Router#
Two routes to 192.168.6.0/24 with equal cost were found, and their AD was 90 and metrics were 22050560.

On Router, show EIGRP interfaces

Router#show ip eigrp interfaces
IP-EIGRP interfaces for process 10
Xmit Queue Mean Pacing Time Multicast
Pending
Interface Peers Un/Reliable SRTT Un/Reliable Flow Timer Routes
Fa0/0 0 0/0 1236 0/10 0 0
Ser2/0 1 0/0 1236 0/10 0 0
Ser3/0 1 0/0 1236 0/10 0 0
Router#

Ping PC1 from PC0

PC>ping 192.168.6.2
Pinging 192.168.6.2 with 32 bytes of data:
Request timed out.
Reply from 192.168.6.2: bytes=32 time=39ms TTL=123
Reply from 192.168.6.2: bytes=32 time=34ms TTL=123
Reply from 192.168.6.2: bytes=32 time=23ms TTL=123
Ping statistics for 192.168.6.2:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
Minimum = 23ms, Maximum = 39ms, Average = 32ms

Shut down S2/0 on Router3 to mimic network disorder

On Router3

Router#confi t
Router(config)#int serial 2/0
Router(config-if)#shutdown
%LINK-5-CHANGED: Interface Serial2/0, changed state to administratively down
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/0, changed state to dow

Check routing table on Router 8 immediately

Router#show ip route
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
C 192.168.0.0/24 is directly connected, Serial3/0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
C 192.168.2.0/24 is directly connected, Serial2/0
D 192.168.3.0/24 [90/21024000] via 192.168.2.2, 00:01:03, Serial2/0
D 192.168.5.0/24 [90/22560000] via 192.168.0.1, 00:00:10, Serial3/0
D 192.168.6.0/24 [90/22050560] via 192.168.0.1, 00:13:58, Serial3/0
D 192.168.7.0/24 [90/22048000] via 192.168.0.1, 00:13:58, Serial3/0
D 192.168.8.0/24 [90/21536000] via 192.168.0.1, 00:13:58, Serial3/0
D 192.168.9.0/24 [90/21024000] via 192.168.0.1, 00:14:01, Serial3/0
Router#
Only one route to 192.168.6.0/24 was found, which means that EIGRP has a rapid convergence.

Ping PC 1 from PC0

PC>ping 192.168.6.2
Pinging 192.168.6.2 with 32 bytes of data:
Reply from 192.168.6.2: bytes=32 time=34ms TTL=123
Reply from 192.168.6.2: bytes=32 time=30ms TTL=123
Reply from 192.168.6.2: bytes=32 time=31ms TTL=123
Reply from 192.168.6.2: bytes=32 time=33ms TTL=123
Ping statistics for 192.168.6.2:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 30ms, Maximum = 34ms, Average = 32ms
Then network turn into a stable condition in no time.