Cisco Generate 1024 Bit Rsa Keys 3,8/5 7558 votes

How I create RSA key and enable SSH access in Cisco VG202, in a Cisco router I use the next commands(but in a VG not exists): conf t 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 telne. Jun 11, 2019% Generating 1024 bit RSA keys, keys will be non-exportableOK   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. Nov 23, 2011% Generating 1024 bit RSA keys, keys will be non-exportable. OK (elapsed time was 3 seconds) This alone should make sure that the SSH is able to run in SSHv2. There are two different approaches to create a self-signed certificate: automatic or manual. To automatically create an rsa key pairs and a certificate, enable the https server: Ciscozine(config)#ip http secure-server% Generating 1024 bit RSA keys, keys will be non-exportable. Feb 16, 2008  How to generate an RSA Key for HTTPS connection? Showing 1-5 of 5 messages. How to generate an RSA Key for HTTPS connection? 1/31/08 6:59 AM: Hey guys. If I want to connet to a Switch over https. The switch automaticlly generates an RSA 768 bit key - even if I generated a 1024 key before! What do I have to do so that the Switch uses the.

Q: I have a Cisco switch in my network, which I can access by hooking up a console cable directly to the device. I like to access the switch remotely using SSH. How can I enable ssh on my Cisco 3750 Catalyst Switch?
A: By default, when you configure a Cisco device, you have to use the console cable and connect directly to the system to access it. Follow the steps mentioned below, which will enable SSH access to your Cisco devices. Once you enable SSH, you can access it remotely using PuTTY or any other SSH client.

1. Setup Management IP

Cisco Generate 1024 Bit Rsa Keys

First, make sure you have performed basic network configurations on your switch. For example, assign default gateway, assign management ip-address, etc. If this is already done, skip to the next step.

In the following example, the management ip address is set as 192.168.101.2 in the 101 VLAN. The default gateway points to the firewall, which is 192.168.101.1

2. Set hostname and domain-name

Next, make sure the switch has a hostname and domain-name set properly.

3. Generate the RSA Keys

The switch or router should have RSA keys that it will use during the SSH process. So, generate these using crypto command as shown below.

Also, if you are running on an older Cisco IOS image, it is highly recommended that you upgrade to latest Cisco IOS.

4. Setup the Line VTY configurations

Setup the following line vty configuration parameters, where input transport is set to SSH. Set the login to local, and password to 7.

If you have not set the console line yet, set it to the following values.

5. Create the username password

If you don’t have an username created already, do it as shown below.

Note: If you don’t have the enable password setup properly, do it now.

Make sure the password-encryption service is turned-on, which will encrypt the password, and when you do “sh run”, you’ll seee only the encrypted password and not clear-text password.

5. Verify SSH access

From the switch, if you do ‘sh ip ssh’, it will confirm that the SSH is enabled on this cisco device.

After the above configurations, login from a remote machine to verify that you can ssh to this cisco switch.

In this example, 192.168.101.2 is the management ip-address of the switch.

> Add your comment

If you enjoyed this article, you might also like.



Next post: How to Backup Oracle Database using RMAN (with Examples)

Previous post: How to Use C++ Single and Multiple Inheritance with an Example

Contents

Introduction

This document describes how to:

  • create a certificate signing request (CSR) on the Secure Socket Layer Module (SSLM)

  • import the certificate using cut and paste in privacy-enhanced mail (PEM) format

Prerequisites

Before you begin, you need to know the domain name that is assigned to the certificate. You also need the Certificates Authorities (CA) root certificate, and possibly the CA intermediate certificate.

Requirements

Before attempting this configuration, ensure that you meet these requirements:

Components Used

The information in this document is based on these software and hardware versions:

  • release 2.1(2)

  • Verisign Test Certificate

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.

Conventions

For more information on document conventions, refer to the Cisco Technical Tips Conventions.

Main Task

Task

This section details each step needed to create the CSR, from the creation of the key pair to importing the server certificate.

Step-by-Step Instructions

Complete the instructions in this section.

Generate
  1. Create the key pair.

    nov10-key is the name of the key pair.

    Note: Be sure to specify exportable; otherwise, you are not able to export the key pair from the SSLM.

  2. Create the trustpoint .

    The name of the trustpoint is yoursite. You need to enter the subject name in X.509 format and your domain name. This information is used to create the CSR.

  3. Generate the CSR.

  4. Send the CSR to your CA.

    Use copy and paste to send the CSR to your CA. If your CA asks for a server type, select Apache.

  5. Load the CA root certificate

    Before you can load the server certificate, you must load any CA certificates. At a minimum, this is the CA root certificate, and possibly a CA intermediate certificate. Your CA is able to provide you with the necessary certificates.

  6. Load the server certificate.

Intermediate Certificates

If you have an intermediate certificate, you need to configure two trustpoints. One trustpoint contains the CA root certificate only. You only need to configure enrollment terminal PEM and Certificate Revocation List (CRL) optional. The second trustpoint contains the intermediate certificate and the server certificate. The second trustpoint is configured similar to the first trustpoint, however, instead of the root certificate, use the intermediate certificate.

Verify

There is currently no verification procedure available for this configuration.

Troubleshoot

This section provides troubleshooting information relevant to this configuration.

If you run into problems loading the certificates, enable debugging with the debug crypto pki transactions command.

Make sure you have the complete certificate chain. You can determine this by viewing the certificates on a PC. Save the certificates with a .cer extension, then double click to open them.

The root certificate is shown in Figure 1. You can determine this by looking at the Issued to and Issued by sections. Both sections are the same. Also, note that the certificate is showing up as not trusted because it a test certificate.

Figure 1

The server certificate is shown in Figure 2. You call determine that it matches the root certificate because the Issued by section matches the Issued by section on the root certificate.

Figure 2

Cisco Generate 1024 Bit Rsa Keys 2017

Related Information

Crypto Key Generate Rsa 1024

  • Downloads - Catalyst 6500/6000 Module Software (registered customers only)
Coments are closed
Scroll to top