Router configuration stub neighbor Relationship setup failed

Router Configuration Stub after

Adjacency Relationship Setup failed

11.1, Benet Head Office and branch office are connected via E1 line. R1, R2 for the head office router, R3 for branch office routers. Network planning is as follows:

N R1 and R2 's interconnected addresses are: 10.0.0.0/30;R2 and R3 's connected address: 20.0.0.0/30;

N uses the Loopback0 interface address of the router as loopback0:3.3.3.3/32 of the loopback0:2.2.2.2/32,r3 of the Route-id,r1 loopback0:1.1.1.1/32,r2.

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Figure 11.1 adjacency Relationship cannot establish network after configuring SUTB

After the network engineer configuration is complete, it is found that R2 and R3 cannot form adjacency, and the router OSPF configuration is as follows (interface configuration is correct, omitted).

R1 Configuration

Router OSPF 1

Router-id 1.1.1.1

Network 1.1.1.1 0.0.0.0 Area 0

Network 10.0.0.0 0.0.0.3 Area 0

R2 Configuration

Router OSPF 1

Router-id 2.2.2.2

Network 2.2.2.2 0.0.0.0 Area 0

Network 10.0.0.0 0.0.0.3 Area 0

Network 20.0.0.0 0.0.0.3 Area 1

R3 Configuration

Router OSPF 1

Router-id 3.3.3.3

Area 1 stub

Network 3.3.3.3 0.0.0.0 Area 0

Network 20.0.0.0 0.0.0.3 Area 1

First, check the network link of the device is normal, use ping command to check the connectivity;

Then, the port state is built via the show Intface f0/0 and show ip OSPF interface fastethernet 0/0 command. If the ports and links are normal, you need to consider the relevant configuration of OSPF, check the configuration to find that the R3 router is configured as the peripheral area, and the rest of the terminal routers cannot establish adjacency with other non-peripheral routers.

Finally, check that the zone type configured for the R3 router is configured as stub and the R2 router Area1 as a standard zone, resulting in an adjacency relationship that cannot be established. After you change the zone type of the R3 router to a standard zone, troubleshoot.

Router configuration stub neighbor Relationship setup failed