Consolidated Platform Configuration Guide, Cisco Ios Release 15.2(4)E (Catalyst 2960-X Switches - Cisco Catalyst 2960 series Configuration Manual

Command or Action
Step 2
configure terminal
Example:
Device# configure terminal
Step 3 ip ssh rsa keypair-name keypair-name
Example:
Device(config)# ip ssh rsa keypair-name
sshkeys
Step 4
crypto key generate rsa usage-keys label
key-label modulus modulus-size
Example:
Device(config)# crypto key generate rsa
usage-keys label sshkeys modulus 768
Step 5 ip ssh [time-out seconds | authentication-retries
integer]
Example:
Device(config)# ip ssh time-out 12
Step 6 ip ssh version 2
Example:
Device(config)# ip ssh version 2
Step 7
exit
Example:
Device(config)# exit

Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)

How to Configure Secure Shell Version 2 Support
Purpose
Enters global configuration mode.
Specifies the RSA key pair to be used for SSH.
Note A Cisco device can have many RSA key
pairs.
Enables the SSH server for local and remote authentication
on the device.
• For SSH Version 2, the modulus size must be at least
768 bits.
Note To delete the RSA key pair, use the crypto key
zeroize rsa command. When you delete the RSA
key pair, you automatically disable the SSH server.
Configures SSH control variables on your device.
Specifies the version of SSH to be run on the device.
Exits global configuration mode and enters privileged EXEC
mode.
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