CCNP Routing and Switching ROUTE 300-101 Official Cert Guide

Plain Text OSPFv2 Authentication

Lesson 5: OSPFv2 Plain Text Authentication

Plain text authentication (also known as clear text authentication or simple password authentication) for OSPFv2 requires neighboring OSPF routers to be preconfigured with the same authentication key (that is, a shared secret password). The steps to configure plain text OSPFv2 authentication are as follows:

Step 1. Plain text authentication must be enabled for either an interface or an OSPF area:

Enable per interface using the ip ospf authentication interface subcommand. ...