Dec 26, 2013 so it looks as if there is no point in the 'crypto key generate rsa' command if i follow it up with the 'crypto key generate rsa usage-keys label sshkeys mod 1024' command, i just wanted to make sure the first wasn't need for the second to work or something screwy like that.
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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.
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
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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.
![Cisco Cisco](/uploads/1/2/5/8/125874759/948142824.jpg)
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.
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Cisco Nexus Training – Go from Beginner to Advanced!
VDC, VPC, OTV, FRX, and many more…
VDC, VPC, OTV, FRX, and many more…
In this lesson, we will configure SSH on Cisco IOS XR enabled router. Earlier we have configured SSH on Cisco IOS, if you want to check that article, then click SSH on Cisco IOS devices.
SSH on Cisco IOS XR
First of all, you should create hostname and domain name just like IOS or IOS-XE.
(NOTE: Unlike regular IOS, IOS-XR doesn’t require hostname and domain-name to generate RSA key.)
(NOTE: Unlike regular IOS, IOS-XR doesn’t require hostname and domain-name to generate RSA key.)
Creating RSA is a little bit different then regular IOS. You need to do this on EXEC mode. You need to use crypto key generate rsa command and hit ENTER to use bits 2048 which is the default in IOS-XR.
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To verify the RSA key use show crypto key mypubkey rsa command.
Let’s enable SSH version 2 and also allow ssh for remote access.
This is how you configure ssh on Cisco IOS-XR devices.
Now what if, you want to restrict SSH login. To do this, you need to go control-plane management-plane. This is where you select inbound or outbound management option.
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In our case, it’s inbound because we are using gigabitEthernet 0/0/0/0. So, the final configuration will be below where we are allowing only 10.1.1.0/24 block.
Verification:
To verify, we can SSH own IP (192.168.3.100 is the management IP for our example).
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Microsoft office 2013 key generator. “show ssh session details” command will show our ssh session details.