Cisco WS-2960-24LC-S Software Guide - Page 172
Configuring the SSH Server, Optional Con the switch to run SSH Version 1 or SSH Version 2.
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Configuring the Switch for Secure Shell Chapter 8 Configuring Switch-Based Authentication Configuring the SSH Server Beginning in privileged EXEC mode, follow these steps to configure the SSH server: Step 1 Step 2 Command configure terminal ip ssh version [1 | 2] Step 3 ip ssh {timeout seconds | authentication-retries number} Step 4 line vty line_number [ending_line_number] transport input ssh Step 5 Step 6 Step 7 end show ip ssh or show ssh copy running-config startup-config Purpose Enter global configuration mode. (Optional) Configure the switch to run SSH Version 1 or SSH Version 2. • 1-Configure the switch to run SSH Version 1. • 2-Configure the switch to run SSH Version 2. If you do not enter this command or do not specify a keyword, the SSH server selects the latest SSH version supported by the SSH client. For example, if the SSH client supports SSHv1 and SSHv2, the SSH server selects SSHv2. Configure the SSH control parameters: • Specify the time-out value in seconds; the default is 120 seconds. The range is 0 to 120 seconds. This parameter applies to the SSH negotiation phase. After the connection is established, the switch uses the default time-out values of the CLI-based sessions. By default, up to five simultaneous, encrypted SSH connections for multiple CLI-based sessions over the network are available (session 0 to session 4). After the execution shell starts, the CLI-based session time-out value returns to the default of 10 minutes. • Specify the number of times that a client can re-authenticate to the server. The default is 3; the range is 0 to 5. Repeat this step when configuring both parameters. (Optional) Configure the virtual terminal line settings. • Enter line configuration mode to configure the virtual terminal line settings. For line_number and ending_line_number, specify a pair of lines. The range is 0 to 15. • Specify that the switch prevent non-SSH Telnet connections. This limits the router to only SSH connections. Return to privileged EXEC mode. Show the version and configuration information for your SSH server. Show the status of the SSH server connections on the switch. (Optional) Save your entries in the configuration file. To return to the default SSH control parameters, use the no ip ssh {timeout | authentication-retries} global configuration command. 8-36 Catalyst 2960 Switch Software Configuration Guide OL-8603-04
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