Securing Router Services and Interfaces
This section discusses Cisco router network services and interfaces and how to secure them.
Cisco routers support many network services that may or may not be required in certain enterprise networks. Turning off or restricting access to these services greatly improves network security by providing only those services that the network requires, and no more. Leaving unused network services enabled increases the possibility of those services being used maliciously.
The following sections discuss the services that have been chosen for their security-related features. These are the router services that are most likely to be used in network attacks.
Disabling BOOTP Server
BOOTP is a UDP service that can be used ...
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