Passwords and Security

Passwords and security are of utmost importance for the security of your router. This chapter provides the information you need to configure your E Series router to be secure for all levels of users.

This chapter contains the following sections:

• Passwords and Security Overview
• Passwords and Security Platform Considerations
• Setting Basic and Enable Password Parameters
• Setting and Erasing Passwords
• Vty Line Authentication and Authorization Overview
• Configuring Simple Vty Line Authentication
• Configuring AAA Authentication and AAA Authorization for Vty Lines
• Setting Virtual Terminal Access Lists
• Secure System Administration with SSH Overview
• Configuring SSH
• Monitoring the Current Status of the SSH Server
• Restricting User Access Overview
• Understanding DoS Protection
• DoS Protection Group Configuration Example
• Monitoring DoS Protection Groups
• Monitoring Suspicious Control Flow Statistics
• Monitoring Suspicious Flows
• Monitoring Suspicious Flow Information
• Monitoring Suspicious Control Flow Protocol