Sample Configuration for Authentication in OSPF Document ID: 13697 Introduction Prerequisites Requirements Components Used Conventions Background Information Configure Network Diagram Configurations for Plain Text Authentication Configurations for MD5 Authentication Verify Verify Plain Text Authentication Verify MD5 Authentication Troubleshoot Troubleshoot Plain Text Authentication Troubleshoot MD5 Authentication Related Information Introduction This document shows sample configurations for Open Shortest Path First (OSPF) authentication which allows the flexibility to authenticate OSPF neighbors. You can enable authentication in OSPF in order to exchange routing update information in a secure manner. OSPF authentication can either be none (or null), simple, or MD5. The authentication method "none" means that no authentication.
