OSPF virtual link configuration process (simple to follow)
Experimental topology diagram
Experimental tool
GNS3
Step 1 of the experiment. Open GNS3 and build device 2 in the topology diagram. Enter R1, set interface IP, and enable OSPF protocol
3. Enter R2, set the interface IP, and enable the OSPF protocol
4. Enter R3, set interface IP, and enable OSPF protocol
5. Enter R4, set interface IP, and enable OSPF protocol
6. Enter R2 and open the virtual link
7. Enter R3 and open the virtual link
8. Set the IP of PC1,PC2
9. Verification
10. Verify successfully
