Routing with the help of Eigrp.

Routing: Routing is a process which communicates between two different networks.

Here we will explain you how two different networks can communicate with each other with the help of Eigrp routing. In the below diagram we have taken three router, router (R1), router (R4) and router(R2). Router R1,R4,R2 are connected to each other with network 200.1.14.0/24 and 200.1.24.0/24. Router R4 is intermediate of Router R1 and Router R2, now we let start to configure the router one by one.

Router (R1) Configuration:

Router>

Router>en

Router#

Router#configuration terminal

Enter configuration commands, one per line. End with CNTL/Z.

Router(config)#hostname R1

R1(config)#interface gigabitEthernet 0/0

R1(config-if)#ip address 200.1.14.1 255.255.255.0

R1(config-if)#no shutdown

R1(config-if)#

%LINK-5-CHANGED: Interface GigabitEthernet0/0, changed state to up

R1(config-if)#

%LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up

R1(config-if)#^Z

R1#

Configure Eigrp 100 in router R1:

R1#

R1#configure terminal

Enter configuration commands, one per line. End with CNTL/Z.

R1(config)#router eigrp 100

R1(config-router)#network 200.1.14.0

%DUAL-5-NBRCHANGE: IP-EIGRP 100: Neighbor 200.1.14.2 (GigabitEthernet0/0) is up: new adjacency

R1(config-router)#network 200.1.14.0

R1(config-router)#exit

R1(config)#^Z

R1#

Show ip eigrp topology :

R1#sho ip eigrp topology

IP-EIGRP Topology Table for AS 100/ID(200.1.14.1)

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,

r - Reply status

P 200.1.14.0/24, 1 successors, FD is 2816

via Connected, GigabitEthernet0/0

P 200.1.24.0/24, 1 successors, FD is 3072

via 200.1.14.2 (3072/2816), GigabitEthernet0/0

Similarly we will configure the router R4 and router R2, Router R4 Will have two network i.e. 200.1.14.0 and 200.1.24.0

Ping response from  R1 to R4 :

R1#ping 200.1.24.2

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 200.1.24.2, timeout is 2 seconds:

!!!!!

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

Ping respose  from R1 to R2:

R1# ping 200.1.24.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 200.1.24.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/1 ms

Hence we are able to communicate with two different networks with the help of Eigrp routing.Further please do commenting if you have any query or suggestion.