Cisco Crypto Key Generate Rsa Modulus 1024

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Configuration of SSH on Cisco Switch in Packet Tracer 2019

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

Jun 25, 2013  Cisco IOS CA server configuration: mkdir flash:/CISCOCA conf terminal ip http server ip domain name networkology.net crypto key generate rsa modulus 1024 label CISCOCA crypto pki server CISCOCA issuer-name CISCOCA database archive pem password cisco123 grant auto lifetime certificate 365 lifetime ca-certificate 1095 database url pem disk0:/CISCOCA no shutdown exit Notes. I did a little research and found out that if I removed the rsa key by using this command ' crypto key zeroize rsa' and then added the 'crypto key generate rsa generate-keys modulus 1024, then that would work. Any thoughts? No service pad. No service password-encryption. Hostname Sales-SW-ACC2. Ip domain name my.company.come. Jul 15, 2019  Cisco IOS Router CA Server and Client configuration. Posted on Jul 15, 2019 at 12:11 AM. #crypto pki authenticate R-Client!!!Session output!!! R-CA(config)#crypto key generate rsa label CA modulus 1024 The name for the keys will be: CA% The key modulus size is 1024 bits% Generating 1024 bit RSA keys, keys will be non. Crypto key generate rsa modulus 1024 ip domain-name domain-name ip ssh version 2 ip ssh time-out 120 ip ssh authentication-retries 3 line vty 0 4 transport input telnet ssh end. Tengo un problema al querer configurar un tunnel con PKI Yo genero una llave de 1024 exportable para una VPN crypto key generate rsa exportable modulus 10 66020. Foghorn(config)#crypto key generate rsa The name for the keys will be: foghorn.thetechfirm.com Choose the size of the key modulus in the range of 360 to 2048 for your. Crypto key generate rsa. cryptokeygeneratersa,page2. Cisco IOS Security Command Reference: Commands A to C, Cisco IOS XE Release 3SE (Catalyst 3850 Switches). Table 1: Sample Times by Modulus Length to Generate RSA Keys Router 360 bits 512 bits 1024 bits 2048 bits (maximum) 4minutes,38 Morethan1hour seconds Cisco2500 11seconds 20seconds.

  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

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

Cisco Crypto Key Generate Rsa Modulus 1024 Command

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. Nwn diamond edition cd key generator.

SW1 ( config)#line console 0

SW1(config-line)#password cisco

SW1(config -line)#logging synchronous

SW1(config- line)#login local Generate private key ssh mac.

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 ( config)#line vty 0 4

sw1 ( config-line)#transport input ssh

sw1( config -line)#login local

sw1(config- line)#password 7

Cisco Crypto Key Generate Rsa Modulus 1024 Command

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 <username> <IP address>. 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.!

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