Building and maintaining a network involves more than just making sure that packets can flow between devices on the network. As a network administrator, you also want to ensure that only the right people can access resources on your network, and that your network will continue to run even if parts of that network fail or are configured incorrectly. Your organization may have directives that you need to implement, like using cheaper network paths whenever possible. In short, while maintaining connectivity is important, you also need to implement security, robustness, and business policies with your network. This book is about network policies and how to implement those policies using Cisco IOS access lists. |
