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How To Configure EIGRP Protocol | Computer Network

To configure EIGRP protocol using cisco packet tracer simulation tool.

Algorithm

Step 1: Start – All Programs – cisco packet tracer – cisco packet tracer 5.3.

Step 2: Add the network device such as PC, switch and router in work area.

Step 3: Connect PC to switch using Copper media Straight through Cable in Fast Ethernet port and use serial cable for router to router connection.

Step 4: Apply the IP address and proper subnet mask.

Step 5: Configure EIGRP Protocol use the following syntax

R1(config)#router eigrp 10
R1(config-router)#network network-Address

Step 6: After complete configuration send the packet (Add Simple PDU) one network to another network.

Step 7: Check the data flow to the network use real time mode (or) Simulation Mode.

Step 8: Now EIGRP protocol was working well. Check the dynamic route and protocol use the command.

R1#show ip route
R1#show ip protocol

Block Diagram

EIGRP Configuration

Device Configuration

DEVICEINTERFACEIP ADDRESSSUBNET MASKGATEWAY
PC1Fast Ethernet192.168.1.1255.255.255.0192.168.1.10
PC2Fast Ethernet192.168.1.2255.255.255.0192.168.1.10
PC3Fast Ethernet192.168.2.1255.255.255.0192.168.2.10
PC4Fast Ethernet192.168.3.1255.255.255.0192.168.3.10
PC5Fast Ethernet192.168.4.1255.255.255.0192.168.4.10
PC6Fast Ethernet192.168.4.2255.255.255.0192.168.4.10
R1Fast Ethernet0/0192.168.1.10255.255.255.0N/A
Fast Ethernet1/0192.168.2.10255.255.255.0N/A
Serial 2/011.1.1.1255.255.255.252N/A
R2Serial 2/011.1.1.2255.255.255.252N/A
Serial 3/011.1.1.5255.255.255.252N/A
R3Fast Ethernet0/0192.168.3.10255.255.255.0N/A
Fast Ethernet1/0192.168.4.10255.255.255.0N/A
Serial 3/011.1.1.6255.255.255.252N/A

R1 Configuration

Router>enable
Router# configure terminal

Device Name and Particular interface Configuration

Router(config)#hostname R1
R1(config)#interface FastEthernet0/0
R1(config-if)#no shutdown
R1(config-if)#ip address 192.168.1.10 255.255.255.0
R1(config-if)#exit

R1(config)#interface FastEthernet1/0
R1(config-if)#no shutdown
R1(config-if)#ip address 192.168.2.10 255.255.255.0
R1(config-if)#exit

R1(config)#interface Serial2/0
R1(config-if)#no shutdown
R1(config-if)#clock rate 72000
R1(config-if)#ip address 11.1.1.1 255.255.255.252
R1(config-if)#

EIGRP Protocol Configuration Command

R1(config)#router eigrp ?
	<1-65535>  Autonomous system number
R1(config)#router eigrp 10
R1(config-router)#network 192.168.1.0 0.0.0.255
R1(config-router)#network 192.168.2.0 0.0.0.255
R1(config-router)#network 11.1.1.0 0.0.0.3
R1(config-router)#

Save the running Configuration file to NVRAM

R1#copy running-config startup-config
Destination filename [startup-config]?
Building configuration...
[OK]
R1#

Verify the EIGRP Routing on the Routing Table

R1#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
     11.0.0.0/8 is variably subnetted, 3 subnets, 2 masks
D       11.0.0.0/8 is a summary, 00:34:09, Null0
C       11.1.1.0/30 is directly connected, Serial2/0
D       11.1.1.4/30 [90/21024000] via 11.1.1.2, 00:33:13, Serial2/0
C    192.168.1.0/24 is directly connected, FastEthernet0/0
C    192.168.2.0/24 is directly connected, FastEthernet1/0
D    192.168.3.0/24 [90/21026560] via 11.1.1.2, 00:32:29, Serial2/0
D    192.168.4.0/24 [90/21026560] via 11.1.1.2, 00:32:29, Serial2/0
R1#

R1#show ip protocols

Routing Protocol is "eigrp  10 "
  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 10
  Automatic network summarization is in effect
  Automatic address summarization:
    11.0.0.0/8 for FastEthernet0/0, FastEthernet1/0
      Summarizing with metric 20512000
  Maximum path: 4
  Routing for Networks:
     192.168.1.0
     192.168.2.0
     11.1.1.0/30

  Routing Information Sources:
    Gateway         Distance      Last Update
    11.1.1.2        90            188273
  Distance: internal 90 external 170
R1#

R2 Configuration

Router>enable
Router#configure terminal

Device Name and Particular interface Configuration

Router(config)#hostname R2
R2(config)#interface Serial2/0
R2(config-if)#no shutdown
R2(config-if)#no clock rate

This command applies only to DCE interfaces

R2(config-if)#ip address 11.1.1.2 255.255.255.252
R2(config-if)#exit

R2(config)#interface Serial3/0
R2(config-if)#no shutdown
R2(config-if)#clock rate 72000
R2(config-if)#ip address 11.1.1.5 255.255.255.252
R2(config-if)#exit

EIGRP Protocol Configuration Command

R2(config)#router eigrp 10
R2(config-router)#network 11.1.1.0 0.0.0.3
R2(config-router)#network 11.1.1.4 0.0.0.3
R2(config-router)#

Save the running Configuration file to NVRAM

R2#copy running-config startup-config
Destination filename [startup-config]?
Building configuration...
[OK]

Verify the EIGRP Routing on the Routing Table

R2#show ip route
R2#show ip protocols

R3 Configuration

Router>enable
Router#configure terminal

Device Name and Particular interface Configuration

Router(config)#hostname R3
R3(config)#interface FastEthernet0/0
R3(config-if)#no shutdown
R3(config-if)#ip address 192.168.3.10 255.255.255.0
R3(config-if)#exit

R3(config)#interface FastEthernet1/0
R3(config-if)#no shutdown
R3(config-if)#ip address 192.168.4.10 255.255.255.0
R3(config-if)#exit
R3(config)#interface Serial3/0
R3(config-if)#no shutdown
R3(config-if)#no clock rate

This command applies only to DCE interfaces

R3(config-if)#ip address 11.1.1.6 255.255.255.252
R3(config-if)#exit

EIGRP Protocol Configuration Command

R3(config)#router eigrp 10
R3(config-router)#network 192.168.3.0 0.0.0.255
R3(config-router)#network 192.168.4.0 0.0.0.255
R3(config-router)#network 11.1.1.4 0.0.0.3
R3(config-router)#

Save the running Configuration file to NVRAM

R3#copy running-config startup-config
Destination filename [startup-config]?
Building configuration...
[OK]
R3#

Verify the EIGRP Routing on the Routing Table

R3#show ip route
R3#show ip protocols

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