| Message Code | ASA-4-409013 |
| Severity | Warning |
| Description | Detected router with duplicate router ID IP_address in Type-4 LSA advertised by IP_address |
| Explanation | OSPF received a hello packet from a neighbor that has the same router ID as this routing process. A full adjacency cannot be established. |
| User Action | The OSPF router ID should be unique. Change the neighbor router ID. |
| Reference Links |
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