| 2.4 |  | Router Management |
| 2.4.1 |  | Router administration |

| As the previous sections have shown, routers are a critical part of operations and security at the network perimeter. The Cisco IOS provides many commands to implement various protection schemes against possible attacks. Cisco IOS images are designed to support centralized audits and management. The following sections describe the logging, time, and software required for configuration maintenance.