Basic Access Control

The Cisco IOS offers a series of mechanisms and protocols that help control the accessibility of devices. These basic access control mechanisms can help you restrict who is accessing your network devices and what they are doing on each device. This important task is needed to ensure the security of your network and to create an audit trail of any changes on the network.

Connecting to a Virtual Terminal Using Telnet and SSH

Common methods of accessing a device running the IOS are via the console port (as discussed in Chapter 2, "The Basics of Device Configuration" ) or via virtual terminal lines (vty). Virtual terminal lines are software that enables you to connect to the router via a data network. An IOS device also supports ...

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