How to Disable Telnet and Enable SSHV2 on DELL Switch:

How to Disable Telnet and Enable SSHV2 on Dell Switch: First enable SSH on Dell Switch and then Disable telnet on switch, because SSHV2 is more secure hence We are going to enable SSHV2 only.

Step to Enable SSHV2:

Step1: Generate Key for SSH: (Dell needs both rsa and dsa to be enabled before turning ssh protocol on).

#crypto key generate rsa

#crypto key generate dsa

Step2: Tell Switch to enable SSHV2 flavour of SSH:

#ip ssh protocol 2

#ip ssh server

Step3: Disable telnet now: (This command may be different as version of DELL IOS differs).

#ip telnet server disable