Filter
Top Products
7-33
Catalyst 2950 Desktop Switch Software Configuration Guide
78-14982-01
Chapter 7 Administering the Switch
Configuring the Switch for Secure Shell
Configuring the Switch for Secure Shell
This section describes how to configure the Secure Shell (SSH) feature. To use this feature, the crypto
(encrypted) multilayer software image must be installed on your switch. You must download this
software image from Cisco.com. For more information, refer to the release notes for this release.
Note For complete syntax and usage information for the commands used in this section, refer to the “Secure
Shell Commands” section in the Cisco IOS Security Command Reference for Release 12.1.
Understanding SSH
SSH is a protocol that provides a secure, remote connection to a Layer 2 or a Layer 3 device. There are
two versions of SSH: SSH version 1 and SSH version 2. This software release only supports SSH
version 1.
SSH provides more security for remote connections than Telnet by providing strong encryption when a
device is authenticated. The SSH feature has an SSH server and an SSH integrated client. The client
supports these user authentication methods:
• TACACS+ (for more information, see the “Controlling Switch Access with TACACS+” section on
page 7-10)
• RADIUS (for more information, see the “Controlling Switch Access with RADIUS” section on
page 7-18)
• Local authentication and authorization (for more information, see the “Configuring the Switch for
Local Authentication and Authorization” section on page 7-32)
For more information about SSH, refer to the “Configuring Secure Shell” section in the Cisco IOS
Security Configuration Guide for Release 12.2.
Note The SSH feature in this software release does not support IP Security (IPSec).
Configuring SSH
Before configuring SSH, download the crypto software image from Cisco.com. For more information,
refer to the release notes for this release.
For information about configuring SSH and displaying SSH settings, refer to the “Configuring Secure
Shell” section in the Cisco IOS Security Configuration Guide for Release 12.2.