WAN Network Tutorial - Cisco Packet Tracer

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OSPF Single Area Network Tutorial ​

This is a guide to setup an OSPF single area network.

OSPF Single Area Network - Cisco Packet Tracer

Configure IP Addresses ​

IP Address Table for PCs ​

PC0:

  • IPv4 Address: 192.168.1.2
  • Subnet Mask: 255.255.255.0
  • Default Gateway: 192.168.1.1

PC1:

  • IPv4 Address: 192.168.2.2
  • Subnet Mask: 255.255.255.0
  • Default Gateway: 192.168.2.1

PC2:

  • IPv4 Address: 192.168.3.2
  • Subnet Mask: 255.255.255.0
  • Default Gateway: 192.168.3.1

IP Address Table for Routers ​

Router0:

  • FastEthernet0/0
    • IPv4 Address: 192.168.1.1
    • Subnet Mask: 255.255.255.0
  • Serial2/0
    • IPv4 Address: 10.0.0.1
    • Subnet Mask: 255.255.255.0

Router1:

  • FastEthernet0/0
    • IPv4 Address: 192.168.2.1
    • Subnet Mask: 255.255.255.0
  • Serial2/0
    • IPv4 Address: 10.0.0.2
    • Subnet Mask: 255.255.255.0
  • Serial3/0
    • IPv4 Address: 20.0.0.2
    • Subnet Mask: 255.255.255.0

Router2:

  • FastEthernet0/0
    • IPv4 Address: 192.168.3.1
    • Subnet Mask: 255.255.255.0
  • Serial2/0
    • IPv4 Address: 20.0.0.1
    • Subnet Mask: 255.255.255.0

Configure IP Addresses for the PCs ​

Go to Desktop -> IP Configuration. Set the IPv4 Address, and Default Gateway for each PC. Make sure the IP addresses of the PCs matches with the information at the IP Address Table for PCs section.

Configure IP Addresses for the Routers ​

FastEthernet0/0

Router0:

Router>en
Router#config t
Router(config)#int FastEthernet0/0
Router(config-if)#ip add 192.168.1.1 255.255.255.0
Router(config-if)#no shut

Router1:

Router>en
Router#config t
Router(config)#int FastEthernet0/0
Router(config-if)#ip add 192.168.2.1 255.255.255.0
Router(config-if)#no shut

Router2:

Router>en
Router#config t
Router(config)#int FastEthernet0/0
Router(config-if)#ip add 192.168.3.1 255.255.255.0
Router(config-if)#no shut

Serial2/0

Router0:

Router>en
Router#config t
Router(config)#int Serial2/0
Router(config-if)#ip add 10.0.0.1 255.255.255.0
Router(config-if)#no shut

Router1:

Router>en
Router#config t
Router(config)#int Serial2/0
Router(config-if)#ip add 10.0.0.2 255.255.255.0
Router(config-if)#no shut

Router2:

Router>en
Router#config t
Router(config)#int Serial2/0
Router(config-if)#ip add 20.0.0.1 255.255.255.0
Router(config-if)#no shut

Serial3/0

Router1:

Router>en
Router#config t
Router(config)#int Serial3/0
Router(config-if)#ip add 20.0.0.2 255.255.255.0
Router(config-if)#no shut

Configure Routing via OSPF ​

Router0:

Router>en
Router#config t
Router(config)#router ospf 1
Router(config-router)#network 10.0.0.0 0.0.0.255 area 0
Router(config-router)#network 192.168.1.0 0.255.255.255 area 0
Router(config-router)#exit

Router1:

Router>en
Router#config t
Router(config)#router ospf 1
Router(config-router)#network 10.0.0.0 0.0.0.255 area 0
Router(config-router)#network 20.0.0.0 0.0.0.255 area 0
Router(config-router)#network 192.168.2.0 0.255.255.255 area 0
Router(config-router)#exit

Router2:

Router>en
Router#config t
Router(config)#router ospf 1
Router(config-router)#network 20.0.0.0 0.0.0.255 area 0
Router(config-router)#network 192.168.3.0 0.255.255.255 area 0
Router(config-router)#exit

Resources: ​