Cisco Systems. Implementing Secure Converged Wide Area Networks. Volume 2. Student Guide

Cisco Systems, 2006. — 398 p.Cisco IOS software has a full set of security features that you can implement to provide security for the network. This module describes the best practices for securing router administrative access using mechanisms such as password security features, failed login attempt handling, and role-based CLI. You will learn how to mitigate attacks using access lists.
The module describes how to design and implement a secure management system including secure protocols such as Secure Shell (SSH), Simple Network Management Protocol version 3 (SNMPv3), and authenticated Network Time Protocol (NTP). The module discusses the most ubiquitous AAA protocols RADIUS and TACACS+, and explains the differences between them.