How to Configure OSPF Authentication – Complete Guide

OSPF offers us 4 kinds of authentication when studying the CCNA and CCNP we really only hear/read about 3, the fourth SHA, is fairly new. Here’s the complete list of available authentication for OSPF. NULL (no authentication) cleartext (packet capture reveals the password) MD5 (creates a 128bit fingerprint of the password, click here to read [...]