Cisco Asa 5505 Generate Ssh Key
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
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.
Have idea the minimize command to enable the ssh on ASA 5505 box? I need to enable ping command and ssh so that I could remotely put the configuratoin on the box again. In PIX, i use 'ca gen rsa key 1024' but it no more support anymore.
Generate Ssh Key Putty
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
Cisco Asa 5505 Ssh Config
- Dec 15, 2015 I could ssh to the inside int over a site to site vpn tunnel before I enabled ssh on the outside. I added ssh to the outside and it worked correctly. I am going with a reboot of your asa or something on the Comcast side is blocking it. You could use nmap from the outside to verify the port is open. Nmap -p 22 (ip of outside if of asa).
- Try re-generating the SSH key. Something like: crypto key generate rsa general-keys modulus 4096. Failing that try rebooting the ASA. Failing that, make sure you are using an up to date version of PuTTY, and enable stronger keys on the ASA with (your software might be too old for this): sh key-exchange group dh-group14-sha1.
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.
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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.
Cisco Asa Generate Ssh Key
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.
Configure Ssh Cisco Asa
In this example, 192.168.101.2 is the management ip-address of the switch.
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