1.3.6 Packet Tracer – Configure SSH Answers

Last Updated on July 22, 2021 by Admin

1.3.6 Packet Tracer – Configure SSH Answers

   CCNA 2 v7 & 7.02   
Final Exam Answers
This Modules 1 - 4
Modules 1 - 4 Exam Answers Online Test
Next Modules 5 - 6
Modules 5 - 6 Exam Answers Online Test
CCNA 2 SRWE v7.02 - Packet Tracer Activities Answers & Solutions
1.0.5 Packet Tracer – Logical and Physical Mode Exploration Answers
1.1.7 Packet Tracer – Basic Switch Configuration – Physical Mode Answers
1.3.6 Packet Tracer – Configure SSH Answers
1.4.7 Packet Tracer – Configure Router Interfaces Answers
1.5.10 Packet Tracer – Verify Directly Connected Networks Answers
1.6.1 Packet Tracer – Implement a Small Network Answers
1.6.2 Packet Tracer  – Configure Basic Router Settings – Physical Mode Answers
3.1.4 Packet Tracer – Who Hears the Broadcast Answers
3.2.8 Packet Tracer – Investigate a VLAN Implementation Answers
3.3.12 Packet Tracer – VLAN Configuration Answers
3.4.5 Packet Tracer – Configure Trunks Answers
3.4.6 Packet Tracer – Configure VLANs and Trunking – Physical Mode Answers
3.5.5 Packet Tracer – Configure DTP Answers
3.6.1 Packet Tracer – Implement VLANs and Trunking Answers
4.2.7 Packet Tracer – Configure Router-on-a-Stick Inter-VLAN Routing Answers
4.3.8 Packet Tracer – Configure Layer 3 Switching and Inter-VLAN Routing Answers
4.4.8 Packet Tracer – Troubleshoot Inter-VLAN Routing Answers
4.4.9 Packet Tracer – Troubleshoot Inter-VLAN Routing – Physical Mode Answers
4.5.1 Packet Tracer – Inter-VLAN Routing Challenge Answers
CCNA 1 SRWE v7.02 - Student Lab Answers & Solutions
1.1.7 Lab – Basic Switch Configuration Answers
1.6.2 Lab – Configure Basic Router Settings Answers
3.4.6 Lab – Configure VLANs and Trunking Answers
3.6.2 Lab – Implement VLANs and Trunking Answers
4.2.8 Lab – Configure Router-on-a-Stick Inter-VLAN Routing Answers
4.4.9 Lab – Troubleshoot Inter-VLAN Routing Answers
4.5.2 Lab – Implement Inter-VLAN Routing Answers

Packet Tracer – Configure SSH (Answers Version)

Answers Note: Red font color or gray highlights indicate text that appears in the Answers copy only.

Addressing Table

Device

Interface

IP Address

Subnet Mask

S1

VLAN 1

10.10.10.2

255.255.255.0

PC1

NIC

10.10.10.10

255.255.255.0

Objectives

Part 1: Secure Passwords

Part 2: Encrypt Communications

Part 3: Verify SSH Implementation

Background

SSH should replace Telnet for management connections. Telnet uses insecure plain text communications. SSH provides security for remote connections by providing strong encryption of all transmitted data between devices. In this activity, you will secure a remote switch with password encryption and SSH.

Instructions

Part 1:  Secure Passwords

  1. Using the command prompt on PC1, Telnet to S1. The user EXEC and privileged EXEC password is cisco.
  2. Save the current configuration so that any mistakes you might make can be reversed by toggling the power for S1.
  3. Show the current configuration and note that the passwords are in plain text. Enter the command that encrypts plain text passwords:

S1(config)# service password-encryption

  1. Verify that the passwords are encrypted.

Part 2:  Encrypt Communications

Step 1:  Set the IP domain name and generate secure keys.

It is generally not safe to use Telnet, because data is transferred in plain text. Therefore, use SSH whenever it is available.

  1. Configure the domain name to be netacad.pka.

S1(config)# ip domain-name netacad.pka

  1. Secure keys are needed to encrypt the data. Generate the RSA keys using a 1024 key length.

S1(config)# crypto key generate rsa

The name for the keys will be: S1.netacad.pka

Choose the size of the key modulus in the range of 360 to 2048 for your

  General Purpose Keys. Choosing a key modulus greater than 512 may take

  a few minutes.

 

How many bits in the modulus [512]: 1024

% Generating 1024 bit RSA keys, keys will be non-exportable…[OK]

Step 2:  Create an SSH user and reconfigure the VTY lines for SSH-only access.

  1. Create an administrator user with cisco as the secret password.

S1(config)# username administrator secret cisco

  1. Configure the VTY lines to check the local username database for login credentials and to only allow SSH for remote access. Remove the existing vty line password.

S1(config)# line vty 0 15

S1(config-line)# login local

S1(config-line)# transport input ssh

S1(config-line)# no password cisco

Step 3:  Verify SSH Implementation

  1. Exit the Telnet session and attempt to log back in using Telnet. The attempt should fail.
  2. Attempt to log in using SSH. Type ssh and press Enter without any parameters to reveal the command usage instructions. Hint: The -l option is the letter “L”, not the number 1.

C:\> ssh -l administrator 10.10.10.2

  1. Upon successful login, enter privileged EXEC mode and save the configuration. If you were unable to successfully access S1, toggle the power and begin again at Part 1.
   CCNA 2 v7 & 7.02   
Final Exam Answers
This Modules 1 - 4
Modules 1 - 4 Exam Answers Online Test
Next Modules 5 - 6
Modules 5 - 6 Exam Answers Online Test
CCNA 2 SRWE v7.02 - Packet Tracer Activities Answers & Solutions
1.0.5 Packet Tracer – Logical and Physical Mode Exploration Answers
1.1.7 Packet Tracer – Basic Switch Configuration – Physical Mode Answers
1.3.6 Packet Tracer – Configure SSH Answers
1.4.7 Packet Tracer – Configure Router Interfaces Answers
1.5.10 Packet Tracer – Verify Directly Connected Networks Answers
1.6.1 Packet Tracer – Implement a Small Network Answers
1.6.2 Packet Tracer  – Configure Basic Router Settings – Physical Mode Answers
3.1.4 Packet Tracer – Who Hears the Broadcast Answers
3.2.8 Packet Tracer – Investigate a VLAN Implementation Answers
3.3.12 Packet Tracer – VLAN Configuration Answers
3.4.5 Packet Tracer – Configure Trunks Answers
3.4.6 Packet Tracer – Configure VLANs and Trunking – Physical Mode Answers
3.5.5 Packet Tracer – Configure DTP Answers
3.6.1 Packet Tracer – Implement VLANs and Trunking Answers
4.2.7 Packet Tracer – Configure Router-on-a-Stick Inter-VLAN Routing Answers
4.3.8 Packet Tracer – Configure Layer 3 Switching and Inter-VLAN Routing Answers
4.4.8 Packet Tracer – Troubleshoot Inter-VLAN Routing Answers
4.4.9 Packet Tracer – Troubleshoot Inter-VLAN Routing – Physical Mode Answers
4.5.1 Packet Tracer – Inter-VLAN Routing Challenge Answers
CCNA 1 SRWE v7.02 - Student Lab Answers & Solutions
1.1.7 Lab – Basic Switch Configuration Answers
1.6.2 Lab – Configure Basic Router Settings Answers
3.4.6 Lab – Configure VLANs and Trunking Answers
3.6.2 Lab – Implement VLANs and Trunking Answers
4.2.8 Lab – Configure Router-on-a-Stick Inter-VLAN Routing Answers
4.4.9 Lab – Troubleshoot Inter-VLAN Routing Answers
4.5.2 Lab – Implement Inter-VLAN Routing Answers
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