CLI Guide

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ip ssh challenge–response–authentication

Enable challenge response authentication for SSHv2.

Syntax

ip ssh challenge-response-authentication enable

To disable the challenge response authentication, use the no ip ssh challenge-response-

authentication enable command.

Parameters

enable Enter the keyword enable to enable the challenge response authentication for

SSHv2.

Defaults Disabled.

Command Modes CONFIGURATION

Command

History

This guide is platform-specific. For command information about other platforms, see the relevant Dell

EMC Networking OS Command Line Reference Guide.

Version Description

9.11(0.0) Introduced on the S4810, S4820T, S3048–ON, S3100 Series, S4048–ON, S5000,

S6000, S6000–ON, Z9500, Z9100–ON, S6100–ON, S6010–ON, S4048T–ON,

C9000, and MXL.

Usage

Information

If both the challenge response authentication and password authentication methods are configured, the

challenge response authentication takes priority.

ip ssh cipher

Configure the list of ciphers supported on both SSH client and SCP.

Syntax

ip ssh cipher cipher-list

Parameters

cipher

cipher-list

Enter the keyword cipher and then a space-delimited list of ciphers that the SSH

client supports. The following ciphers are available.

● aes256-ctr

● aes256-cbc

● aes192-ctr

● aes192-cbc

● aes128-ctr

● aes128-cbc

● 3des-cbc

Defaults The default list of ciphers is in the order as shown below: