User`s guide

Chapter 1 Cisco SDM Express

Supplementary Help

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Cisco SDM Express 2.4 User’s Guide

OL-7141-05

exec-timeout 10

line AUX 0

transport output telnet

exec-timeout 10

line vty ….

transport input telnet

Enable SSH for Access to the Router

If the Cisco IOS release running on the router is a crypto image (an image that

uses 56-bit Data Encryption Standard (DES) encryption and is subject to export

restrictions), then Cisco SDM Express will implement the following

configurations to secure Telnet access whenever possible:

• Enable Secure Shell (SSH) for Telnet access. SSH makes Telnet access much

more secure.

• Set the SSH timeout value to 60 seconds, causing incomplete SSH

connections to shut down after 60 seconds.

• Set the maximum number of unsuccessful SSH login attempts to two before

locking access to the router.

The configuration that will be delivered to the router to secure access and file

transfer functions is as follows:

ip ssh time-out 60

ip ssh authentication-retries 2

line vty 0 4

transport input ssh