Friday, May 5, 2023

OSPF : Basic configuration in GNS3

 OSPF basic configuration:-



R1

configure terminal

interface FastEthernet 0/0

ip address 10.0.0.1 255.0.0.0

no shutdown

interface FastEthernet 0/1

ip address 30.0.0.1 255.0.0.0

no shutdown

interface loopback 0

ip address 1.1.1.1 255.255.255.0

no shutdown

exit

router ospf 1

network 10.0.0.1 255.255.255.0 area 0

network 30.0.0.1 255.255.255.0 area 0

network 1.1.1.1 255.0.0.0 area 0

exit

exit

copy running-confign startup-config


R2

configure terminal

interface FastEthernet 0/0

ip address 10.0.0.2 255.0.0.0

no shutdown

interface FastEthernet 0/1

ip address 20.0.0.2 255.0.0.0

no shutdown

exit

router ospf 1

network 10.0.0.1 255.255.255.0 area 0

network 20.0.0.1 255.255.255.0 area 0

exit

exit

copy running-confign startup-config


R3

configure terminal

interface FastEthernet 0/0

ip address 40.0.0.3 255.0.0.0

no shutdown

interface FastEthernet 0/1

ip address 20.0.0.3 255.0.0.0

no shutdown

interface FastEthernet 1/0

ip address 50.0.0.3 255.0.0.0

no shutdown

exit

router ospf 1

network 40.0.0.1 255.255.255.0 area 0

network 20.0.0.1 255.255.255.0 area 0

network 50.0.0.1 255.255.255.0 area 1

exit

exit

copy running-confign startup-config


R6

configure terminal

interface FastEthernet 0/0

ip address 30.0.0.6 255.0.0.0

no shutdown

interface FastEthernet 0/1

ip address 40.0.0.6 255.0.0.0

no shutdown

exit

router ospf 1

network 30.0.0.1 255.255.255.0 area 0

network 40.0.0.1 255.255.255.0 area 0

copy running-confign startup-config


R4

configure terminal

interface FastEthernet 0/0

ip address 60.0.0.4 255.0.0.0

no shutdown

interface FastEthernet 0/1

ip address 50.0.0.4 255.0.0.0

no shutdown

exit

router ospf 1

network 50.0.0.1 255.255.255.0 area 1

network 60.0.0.1 255.255.255.0 area 1

exit

exit

copy running-confign startup-config


R5

configure terminal

interface FastEthernet 0/0

ip address 60.0.0.5 255.0.0.0

no shutdown

interface loopback 0

ip address 5.5.5.5. 255.255.255.0

no shutdown

exit

router ospf 1

network 60.0.0.1 255.255.255.0 area 1

exit

exit

copy running-confign startup-config


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