Tuesday, 12 February 2019
OSPF(Open Short Path First) Routing
OSPF(Open Short Path First)
1. It is dynamic routing
Protocol. It is also known as link straight protocol
2. OSPF is classless
routing protocol. Support CIDR Network.
3. OSPF protocol design
and develop by IAB (Internet Articture Board) and IETF (Internet
Engineer Task Force)
4. OSPF Route the packet
up to infinity hope {infinity network support}
5. OSPF is use LSA (Link
Stay Advertisement)
LSA
are of 9 Type
LSA-1 is
in CCNA
And other
from 2-9 are in CCNP
6. OSPF Use Process ID,
Process ID mask match between neighbors router
7. Process ID range is
between 1 to 65535.
8. OSPF is use area no.,
Area no. zero is backbone Area
9. OSPF Configuration
also support wild card mask. Wild card mask is just opposite of subnet mask
For EX.:-
255.255.255.0
-255.255.255.255
————————
0.0.0.255
NOW CONFIGURATION:-
Now Diagram
Step#1 Basic Configuration:-
Go to First Router
Router>enable
Router#configure terminal
Router(config)#interface Serial0/0
Router(config-if)#ip address 192.168.30.1 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#clock rate 64000
Router(config-if)#exit
Router(config)#int loopback 0
Router(config-if)#ip address 192.168.10.1 255.255.255.0
Router(config-if)#exit
Go to second Router
Router>enable
Router#configure terminal
Router(config)#interface Serial 0/0
Router(config-if)#ip address 192.168.30.2 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#exit
Router(config)#interface Serial 0/1
Router(config-if)#ip address 192.168.40.1 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#clock rate 64000
Router(config-if)#exit
Router(config)#int loopback 0
Router(config-if)#ip address 192.168.20.1 255.255.255.0
Router(config-if)#exit
Go to third Router
Router(config)#interface Serial 0/0
Router(config-if)#ip address 192.168.40.2 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#exit
Router(config)#int loopback 0
Router(config-if)#ip address 192.168.50.1 255.255.255.0
Router(config-if)#exit
Step#2 Now Routing
Go to First Router
Router(config)#router ospf 100
Router(config-router)#net 192.168.10.0 0.0.0.255 area 0
Router(config-router)#net 192.168.30.0 0.0.0.255 area 0
Router(config-router)#exit
Go to Second Router
Router(config)#router ospf 100
Router(config-router)#net 192.168.20.0 0.0.0.255 area 0
Router(config-router)#net 192.168.30.0 0.0.0.255 area 0
Router(config-router)#net 192.168.40.0 0.0.0.255 area 0
Router(config-router)#exit
Step#1 Basic Configuration:-
Go to First Router
Router>enable
Router#configure terminal
Router(config)#interface Serial0/0
Router(config-if)#ip address 192.168.30.1 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#clock rate 64000
Router(config-if)#exit
Router(config)#int loopback 0
Router(config-if)#ip address 192.168.10.1 255.255.255.0
Router(config-if)#exit
Go to second Router
Router>enable
Router#configure terminal
Router(config)#interface Serial 0/0
Router(config-if)#ip address 192.168.30.2 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#exit
Router(config)#interface Serial 0/1
Router(config-if)#ip address 192.168.40.1 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#clock rate 64000
Router(config-if)#exit
Router(config)#int loopback 0
Router(config-if)#ip address 192.168.20.1 255.255.255.0
Router(config-if)#exit
Go to third Router
Router(config)#interface Serial 0/0
Router(config-if)#ip address 192.168.40.2 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#exit
Router(config)#int loopback 0
Router(config-if)#ip address 192.168.50.1 255.255.255.0
Router(config-if)#exit
Go to First Router
Router(config)#router ospf 100
Router(config-router)#net 192.168.10.0 0.0.0.255 area 0
Router(config-router)#net 192.168.30.0 0.0.0.255 area 0
Router(config-router)#exit
Go to Second Router
Router(config)#router ospf 100
Router(config-router)#net 192.168.20.0 0.0.0.255 area 0
Router(config-router)#net 192.168.30.0 0.0.0.255 area 0
Router(config-router)#net 192.168.40.0 0.0.0.255 area 0
Router(config-router)#exit
Go to Third Router
Router(config)#router ospf 100
Router(config-router)#net 192.168.40.0 0.0.0.255 area 0
Router(config-router)#net 192.168.50.0 0.0.0.255 area 0
Router(config-router)#exit
Now Check Network by sending Package or ping one router to another router as Shown in the Diagram
------------------------END-----------------------------
Router(config-router)#net 192.168.40.0 0.0.0.255 area 0
Router(config-router)#net 192.168.50.0 0.0.0.255 area 0
Router(config-router)#exit
Now Check Network by sending Package or ping one router to another router as Shown in the Diagram
------------------------END-----------------------------
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