Crypto Key Generate Rsa Packet Tracer

Configuration of SSH on Cisco Switch in Packet Tracer 2019

1. Cisco Crypto Key Gen Rsa
2. Packet Tracer Crypto Key Generate Rsa
3. Crypto Key Generate Rsa Command
4. Generate Rsa Key

This Article is about the configuration of SSH on Cisco Switch. You can configure SSH on Cisco devices very easily using these simple steps:

1. Crate a Packet Tracer Topology Lab
2. Basic IP Setting for connectivity
3. Set hostname and domain-name on Switch
4. Set console and enable password for SSH login
5. Generate the RSA Keys
6. Setup the Line VTY configurations
7. Create the username password for SSH access from PC
8. Verify SSH access

For the configurations of SSH in packet tracer on Cisco switch, you are required to follow the above steps. Let start and perform these steps one by one. (Learn what is PSSH)

Crate a Packet Tracer Topology Lab

How to configure SSH on Cisco IOS. (config)#crypto key generate rsa The name for the keys will be: R1.NETWORKLESSONS.LOCAL Choose the size of the key modulus in.

Our first step is to open the packet tracer and need to create a simple lab. For this topology we will use only one switch and a PC. Simply drag these two items on dashboard. Now we will connect them with straight through connection.

Basic IP Setting for connectivity

The next step is assign the suitable IP setting to these devices. For keeping it simple and making basic connectivity we will assign just two IP address to these device. We will assign the IP address to PC. For this will open the PC setting and then IP configuration. Here we will assign an IP address to host, in our case we are going to assign it 192.168.1.1 with the default gateway. For default gateway we will assign the IP address 192.168.1.10. We assign the second IP address to our Vlan1 interface on switch. And its IP address will be the gateway of host that is 192.168.1.10. For this we will use the basic commands.
Switch> enable

Switch# config t

Switch(config)#interface vlan 1

Switch (config-if)# ip address 192.168.1.10 255.255.255.0

Switch (config -if)#no shut

Once you done with basic IP setting, you can verify the connectivity by pinging the interface vlan1 IP from host.

Set host-name and domain-name on Switch

For SSh configurations you need to configure a host-name and domain-name for your switch you can do this with these simple commands.

Switch # config t

Switch (config)#hostname SW1

SW1 ( config)#ip domain-name w7cloud.com

Set console and enable password for SSH login

For SSH access it is required that you must configure the console and enable password on your cisco switch. You can set these two passwords with following commands.

SW1 ( config)#line console 0

SW1(config-line)#password cisco

SW1(config -line)#logging synchronous

SW1(config- line)#login local

SW1 (config- line)#exit

SW1 # enable secret cisco

Generate the RSA Keys

Your Cisco switch must have RSA keys that for the SSH process. You can generate the RSA keys with following command:

SW1 ( config)# crypto key generate rsa

How many bits in the modulus [512]: 1024

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

Set the size of key to 1024 bits.

If your Cisco Switch is running an older version of Cisco IOS image, then it is extremely recommended that you upgrade to latest Cisco IOS.

Setup the Line VTY configurations

For the configuration of SSH on cisco switch you need the following line vty configurations, and input transport is required to set to SSH. Set the login-to-local, & password to 7.

SW1 # enable secret cisco

Generate the RSA Keys

Your Cisco switch must have RSA keys that for the SSH process. You can generate the RSA keys with following command:

SW1 ( config)# crypto key generate rsa

How many bits in the modulus [512]: 1024

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

Set the size of key to 1024 bits.

If your Cisco Switch is running an older version of Cisco IOS image, then it is extremely recommended that you upgrade to latest Cisco IOS.

Setup the Line VTY configurations

For the configuration of SSH on cisco switch you need the following line vty configurations, and input transport is required to set to SSH. Set the login-to-local, & password to 7.

sw1 ( config)#line vty 0 4

sw1 ( config-line)#transport input ssh

sw1( config -line)#login local

sw1(config- line)#password 7

sw1(config- line ) #exit

Create the username password for SSH access from PC

If you do not have a username for SSH access you need to create a username. You can do it with this simple command:

Sw1# config t

sw1 (config ) # username w7cloud password cisco

Make sure the password encryption services is enabled on your switch, this service will encrypt your password, & when you do 'sh run', you'll see only the encrypted password, not clear text password.

SW1# service password-encryption

Verify SSH access from Host

Once you done with the above configurations you can test all these configuration by creating a SSH connection from Host. You do it the command ssh –l . Open the host command prompt and use the command

C:>ssh -l waqas 192.168.1.10

It will ask for password, provide the password that you created with this username in previous steps. Then it asked for console password and then you need to provide the enable password. Now you are in your Cisco switch. You can perform switch configurations from your host.

From the switch, if you use the command ‘sh ip ssh', it will also confirm that SSH is enabled on this cisco swith.

For better understanding please watch the video and like it.

I hope this will be a helpful for you, please share your comments. If you like this then share this on social media. Thank you for reading this..!

Guide on Cisco Router Configuration for Beginners

Related: 4 Best SSH Client Used by Professionals

Packet Tracer – Configure Secure Passwords and SSH Instructor Version

Addressing Table

Scenario

The network administrator has asked you to prepare RTA and SW1 for deployment. Before they can be connected to the network, security measures must be enabled.

Intructions

Step 1: Configure Basic Security on the Router

a. Configure IP addressing on PCA according to the Addressing Table.

b. Console into RTA from the Terminal on PCA.

c. Configure the hostname as RTA.

Cisco Crypto Key Gen Rsa

d. Configure IP addressing on RTA and enable the interface.

e. Encrypt all plaintext passwords.

f. Set the minimum password length to 10.

g. Set a strong secret password of your choosing.
Note: Choose a password that you will remember, or you will need to reset the activity if you are locked out of the device.

h. Disable DNS lookup.

i. Set the domain name to CCNA.com (case-sensitive for scoring in PT).

j. Create a user of your choosing with a strong encrypted password.

k. Generate 1024-bit RSA keys.

Packet Tracer Crypto Key Generate Rsa

Note: In Packet Tracer, enter the crypto key generate rsa command and press Enter to continue.

l. Block anyone for three minutes who fails to log in after four attempts within a two-minute period.

m. Configure all VTY lines for SSH access and use the local user profiles for authentication.

n. Set the EXEC mode timeout to 6 minutes on the VTY lines.

o. Save the configuration to NVRAM.

p. Access the command prompt on the desktop of PCA to establish an SSH connection to RTA.

Step 2: Configure Basic Security on the Switch

Configure switch SW1 with corresponding security measures. Refer to the configuration steps on the router if you need additional assistance.

a. Click on SW1 and select the CLI tab.

b. Configure the hostname as SW1.

c. Configure IP addressing on SW1 VLAN1 and enable the interface.

d. Configure the default gateway address.

e. Disable all unused switch ports.

Note: On a switch it is a good security practice to disable unused ports. One method of doing this is to simply shut down each port with the ‘shutdown' command. This would require accessing each port individually. There is a shortcut method for making modifications to several ports at once by using the interface range command. On SW1 all ports except FastEthernet0/1 and GigabitEthernet0/1 can be shutdown with the following command:

The command used the port range of 2-24 for the FastEthernet ports and then a single port range of GigabitEthernet0/2.

f. Encrypt all plaintext passwords.

g. Set a strong secret password of your choosing.

h. Disable DNS lookup.

i. Set the domain name to CCNA.com (case-sensitive for scoring in PT).

j. Create a user of your choosing with a strong encrypted password.

k. Generate 1024-bit RSA keys.

l. Configure all VTY lines for SSH access and use the local user profiles for authentication.

Crypto Key Generate Rsa Command

m. Set the EXEC mode timeout to 6 minutes on all VTY lines.

Generate Rsa Key

n. Save the configuration to NVRAM.

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