120 Labs for Cisco CCNA 200-125 and CCENT Exams

Lab 51: Permitting Telnet Access to Catalyst IOS Switches—Login Local

Lab Objective:

The objective of this lab exercise is for you to learn and understand how to configure a switch to be accessed remotely via Telnet. By default, you can telnet to a switch but cannot log in if no password has been set.

Lab Purpose:

Telnet access configuration is a fundamental skill. More often than not, switches are accessed and configured remotely via Telnet. As a Cisco engineer, as well as in the Cisco CCNA exam, you will be expected to know how to configure a switch to allow an administrator to log in via Telnet.

Certification Level:

This lab is suitable for CCENT certification exam preparation.

Lab Difficulty:

This lab has a difficulty rating of 4/10.

Readiness Assessment:

When you are ready for your certification exam, you should complete this lab in no more than 10 minutes.

Lab Topology:

Please use the following topology to complete this lab exercise:

Task 1:

Configure hostnames on Sw1 and R1 as illustrated in the topology.

Task 2:

Create VLAN10 on Sw1 and assign port FastEthernet0/2 to this VLAN as an access port.

Task 3:

Configure IP address 10.0.0.1/30 on R1’s FastEthernet0/0 interface and IP address 10.0.0.2/30 on Sw1’s VLAN10 interface. Verify that R1 can ping Sw1, and vice versa.

Task 4:

Configure Telnet access to Sw1 using the local username howtonetwork and the password CISCO. The password is case-sensitive so take that into consideration in your configuration. Verify your configuration by creating a Telnet session from R1.

Configuration and Verification

Task 1:

For reference information on configuring hostnames, please refer to earlier labs.

Task 2:

For reference information on configuring and verifying VLANs, please refer to earlier labs.

Task 3:

For reference information on configuring IP interfaces, please refer to earlier labs.

Task 4:

Sw1#conf t 
Enter configuration commands, one per line.  End with CTRL/Z. 

Sw1(config)#username howtonetwork password  CISCO 
Sw1(config)#line vty 0 15 
Sw1(config-line)#login local 
Sw1(config-line)#

NOTE: When you specify the login local command, the router will check for a username and password combination. If you just specify login, then you can reference a password added directly under the vty lines.

R1#telnet 10.0.0.2 
Trying 10.0.0.2 ...Open 

User Access Verification 

Username: howtonetwork 
Password: 
Sw1>

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