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DES-7200 Configuration Guide Chapter 4 OSPF
Configuration
4-64
C 4.4.4.0/24 is directly connected, Loopback 0
C 4.4.4.4/32 is local host.
O IA 192.168.1.0/24 [110/3] via 192.168.3.1, 00:04:45, VLAN 30
O IA 192.168.2.0/24 [110/2] via 192.168.3.1, 00:05:02, VLAN 30
C 192.168.3.0/24 is directly connected, VLAN 30
C 192.168.3.2/32 is local host.
From the above information, we can see that after configuring the virtual link,
Switch D has successfully learned the routes from segments 192.168.1.0/24
(area 0) and 192.168.2.0/24 (area 1).
Display OSPF routing table of Switch A
SwitchA#show ip route ospf
O IA 192.168.2.0/24 [110/2] via 192.168.1.2, 00:51:22, VLAN 10
O IA 192.168.3.0/24 [110/3] via 192.168.1.2, 00:07:58, VLAN 10
From the above information, we can see that after configuring the virtual link,
Switch A has successfully learned the route from segment 192.168.3.0/24 (area
2).
Display OSPF virtual link information of Switch B
SwitchB#show ip ospf 1 virtual-links
Virtual Link VLINK0 to router 3.3.3.3 is up
Transit area 0.0.0.1 via interface GigabitEthernet 0/3
Local address 192.168.2.1/32
Remote address 192.168.2.2/32
Transmit Delay is 1 sec, State Point-To-Point,
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:03
Adjacency state Full
Display OSPF virtual link information of Switch C
SwitchC#show ip ospf 1 virtual-links
Virtual Link VLINK0 to router 2.2.2.2 is up
Transit area 0.0.0.1 via interface GigabitEthernet 0/3
Local address 192.168.2.2/32
Remote address 192.168.2.1/32
Transmit Delay is 1 sec, State Point-To-Point,
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:00
Adjacency state Full
4.4.11 OSPF Authentication Configuration Example
Topological diagram