Virtual link topology
First, the deployment server environment
1, R1 router:
Configure IP address information for each interface, loopback adapter arranged fixed IP address, the OSPF protocol configuration information.
conf t
int f0/0
ip add 192.168.10.1 255.255.255.0
no shut
int f0/1
ip add 192.168.20.1 255.255.255.0
no shut
ex
int lo 0
ip add 1.1.1.1 255.255.255.255
no shut
ex
router ospf 1
router-id 1.1.1.1
network 192.168.10.0 0.0.0.255 area 2
network 192.168.20.0 0.0.0.255 area 2 2, R2 router
Configure IP address information for each interface, loopback adapter arranged fixed IP address, the OSPF protocol configuration information, creates a virtual link.
conf t
int f0/0
ip add 192.168.20.2 255.255.255.0
no shut
int f0/1
ip add 192.168.30.1 255.255.255.0
no shut
ex
int lo 0
ip add 2.2.2.2 255.255.255.255
no shut
ex
router ospf 1
router-id 2.2.2.2
network 192.168.20.0 0.0.0.255 area 2
network 192.168.30.0 0.0.0.255 area 1
ex
router ospf 1
area 1 virtual-link 3.3.3.3 3, R3 router:
Configure IP address information for each interface, loopback adapter arranged fixed IP address, the OSPF protocol configuration information, creates a virtual link.
conf t
int f0/0
ip add 192.168.30.2 255.255.255.0
no shut
ex
int f0/1
ip add 192.168.40.1 255.255.255.0
no shut
int lo 0
ip add 3.3.3.3 255.255.255.255
no shut
ex
router ospf 1
router-id 3.3.3.3
network 192.168.30.0 0.0.0.255 area 1
network 192.168.40.0 0.0.0.255 area 0
ex
router ospf 1
area 1 virtual-link 2.2.2.2 4, R4 router:
Configure IP address information for each interface, loopback adapter arranged fixed IP address, the OSPF protocol configuration information.
conf t
int f0/0
ip add 192.168.40.2 255.255.255.0
no shut
int f0/1
ip add 192.168.50.1 255.255.255.0
no shut
ex
int lo 0
ip add 4.4.4.4 255.255.255.255
no shut
ex
router ospf 1
router-id 4.4.4.4
network 192.168.40.0 0.0.0.255 area 0
network 192.168.50.0 0.0.0.255 area 0 Second, the deployment of the client environment
1, PC1 configure the IP address and gateway information
2, PC2 configure the IP address and gateway information
Third, the whole network interoperability verification
