Enhanced Interior Gateway Routing Protocol (EIGRP) for IPv4 configuration.


Network Topology: 

 In this blog we will start the basic configuration of EIGRP protocol using two routers.firstly We have to assign the IP addressing for the interfaces and after that we will configure the EIGRP on both routers.


R1 Interface configuration:

Continue with configuration dialog? [yes/no]: no


Press RETURN to get started!


Router>en
Router#config t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#Hostname R1
R1(config)#Int fastEthernet 0/0
R1(config-if)#Ip address 192.168.10.1 255.255.255.0
R1(config-if)#no shutdown
R1(config)#Int fastEthernet 0/1
R1(config-if)#Ip address 10.10.10.1 255.255.255.0
R1(config-if)#no shutdown


R2 Interface configuration:


Continue with configuration dialog? [yes/no]: no


Press RETURN to get started!

Router>en
Router#config t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#Hostname R2
R1(config)#Int fastEthernet 0/0
R1(config-if)#Ip address 192.168.10.2 255.255.255.0
R1(config-if)#no shutdown

R1(config)#Int fastEthernet 0/1
R1(config-if)#Ip address 10.10.20.1 255.255.255.0
R1(config-if)#no shutdown

R1 EIGRP Configuration:

R1(config)#Router eigrp 100
R1(config-router)#Network 192.168.10.0

R1(config-router)#network 10.10.10.0

%DUAL-5-NBRCHANGE: IP-EIGRP 100: Neighbor 192.168.10.2 (FastEthernet0/0) is up: new adjacency


R2 EIGRP Configuration:

R1(config)#Router eigrp 100
R1(config-router)#Network 192.168.10.0

R1(config-router)#network 10.10.20.0

Router(config-router)#
%DUAL-5-NBRCHANGE: IP-EIGRP 100: Neighbor 192.168.10.1 (FastEthernet0/0) is up: new adjacency



EIGRP Route Testing:

On R1:

R1#sh Ip route eigrp
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

D 10.0.0.0/8 is a summary, 00:02:11, Null0

R1#ping 10.10.20.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.10.20.1, timeout is 2 seconds:
!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/2 ms

On R2:

Router#sh ip route eigrp
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

D 10.0.0.0/8 is a summary, 00:02:02, Null0

R2#ping 10.10.10.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.10.10.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/2 ms

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