Configuring OSPF in Cisco Routers

 

***  Router 1 *** 

 Activate the connection to PC1

en
config t
int g0/0
ip address 192.168.1.1 255.255.255.0
no shut


Activate the connection to Router2

int s0/0/1
ip address 223.200.100.9 255.255.255.252
clock rate 64000
no shut


Activate the connection to Router 3

int s0/0/0
ip address 223.200.100.1 255.255.255.252
no shut
exit


Configure OSPF

router ospf 10
network 192.168.1.0 0.0.0.255 area 0
network 223.200.100.0 0.0.0.3 area 0
network 223.200.100.8 0.0.0.3 area 0

end

Save the configuration

copy run start

*** Router 2 ***

Activate the connection to PC2

en
config t
int g0/0
ip address 192.168.2.1 255.255.255.0
no shut


Activate the connection to Router 1

int s0/0/1
ip address 223.200.100.10 255.255.255.252
no shut


Activate the connection to Router 3

int s0/0/0
ip address 223.200.100.6 255.255.255.252
no shut
exit


Configure OSPF

router ospf 10
network 192.168.2.0 0.0.0.255 area 0
network 223.200.100.8 0.0.0.3 area 0
network 223.200.100.4 0.0.0.3 area 0

end


Save the configuration

copy run start

*** Router 3 ***

Activate the connection to PC3

en
config t
int g0/0
ip address 192.168.3.1 255.255.255.0
no shut


Activate the connection to Router 1

int s0/0/0
ip address 223.200.100.2 255.255.255.252
clock rate 64000
no shut


Activate the connection to Router 2

int s0/0/1
ip address 223.200.100.5 255.255.255.252
clock rate 64000
no shut
exit


Configure OSPF

router ospf 10
network 192.168.3.0 0.0.0.255 area 0
network 223.200.100.0 0.0.0.3 area 0
network 223.200.100.4 0.0.0.3 area 0

end

Save the configuration

copy run start

* If you want to do testing in Packet Tracer, please click here to download .pkt file.