Performance and Fault Management

Terminal Emulators

Terminal emulators are used for many purposes in network management, including user access to network devices. Obviously, access is useful for configuring and troubleshooting devices. There are also times when information or operations on network devices are not available through SNMP and scripts must be written to access this information or capability through terminal access.

Telnet is the traditional way of obtaining terminal emulation access to network devices. Cisco IOS devices also support remote shell, or rsh.

Cisco IOS software provides two methods for obtaining terminal emulation access in a secure manner: Secure Shell (SSH) and IP Security (IPSec) with Virtual Private Networks (VPN). SSH, which devices are just starting ...