Steps to activate Cisco Licensing on a Cisco Router:
Cisco License Generator - fasrct For those that have been using Cisco IOS 12 forever, you may not have realized that Cisco has begun rolling out IOS 15. Although there are a lot of that are being introduced, IOS 15 introduces a new licensing scheme that may throw old users for a loop. This lesson explains Important Key Combinations of Cisco IOS Command Line Interface (CLI), which can be used to navigate Cisco IOS Command Line Interface (CLI) and Cisco IOS Shortcut Keys. Please allow at least 30 minutes for the license key file to be sent to the 'Send To' email address. Issue experience during the PAK file registration. Recommend to contact Licensing team at licensing@cisco.com or lodge a Support Case from www.cisco.com to get further assistance. Next step after receiving the license key file.
- Purchase the software package or feature and receive a PAK based on your purchase.
- Get a license file using one of two options:
Cisco License Manager
Cisco License Registration Portal
- Install and manage the license.
In IOS versions previous to 15.x, there could have been 10 or 20 different IOS versions for a single router with different feature sets. Cisco greatly simplified that with the licesing model introudced in IOS 15.x. Basically now you load a single IOS image on a Cisco router called the Universal Image and based upon your license key, you are able to unlock the features of the IOS.
To view the technology package license and feature licenses support on a router, you are able to use the show license feature command. Furthermroe, to view information abotu Cisco IOS licenses on a specific router, you would use the show license feature command.
Router# show license feature
Router# show license feature
The license install command installs the license file on a router. A reboot of the router via the reload command is not required if an evaluation license is active. A reload is required to activate a technology package license if an evaluation license is not active. The command you will use to load the license is license install flash0:
Something very helpful in the newer 15.x IOS version is the concept of an evaluation license.
The license install command installs the license file on a router. A reboot of the router via the reload command is not required if an evaluation license is active. A reload is required to activate a technology package license if an evaluation license is not active.
The license save command saves copies of all licenses in a device. The storage location can be a directory or URL that points to a file system.
The license clear command clears the technology package from license storage. From configuration mode, use the no license boot module command to clear the license boot module which disables the active license. A reload is required to make the technology package inactive.
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Cisco Ios 15 License Key Generator
I was trying to add IOU L2 Switch image on GNS3 VM but an wired license error didn’t permit me to start the L2 Switch image. It says:
error while starting IOU1: License section not found in iourc file /tmp/tmpkrjoe5hx/iourc
Here’s how I solved it.
Section 1: Download and add IOU Image on GNS3 VM
i) Download Cisco L2/L3 IOU image. Some of them can be found here. You can also Google it to download any specific image. I’m using i86bi-linux-l2-adventerprisek9-15.2d.bin for my L2 lab.
ii) Go to Preference > IOS on UNIX > IOU Devices and add the image.
iii) But when I tried to run the switch on GNS3. It shows a license error.
iv) When I check the license from Preference > IOS on UNIX, it’s emplty, no license is there.
Section 2: Generate and add the Cisco IOURC License
You need a licence for your GNS3 VM to run IOU. This licence is provided by Cisco. We called this licence file iourc.
The content of the licence file will be like this:
[license]
gns3vm = <16-character license>;
The license is actually generated by the Keygen with the combination of the hostname and the hostid and ioukey of your VM. The Keygen file is actually a Python script that looks like:
#! /usr/bin/python3
print(“*********************************************************************”)
print(“Cisco IOU License Generator – Kal 2011, python port of 2006 C version”)
import os
import socket
import hashlib
import struct
# get the host id and host name to calculate the hostkey
hostid=os.popen(“hostid”).read().strip()
hostname = socket.gethostname()
ioukey=int(hostid,16)
for x in hostname:
ioukey = ioukey + ord(x)
print(“hostid=” + hostid +”, hostname=”+ hostname + “, ioukey=” + hex(ioukey)[2:])
# create the license using md5sum
iouPad1 = b’x4Bx58x21x81x56x7Bx0DxF3x21x43x9Bx7ExACx1DxE6x8A’
iouPad2 = b’x80′ + 39*b’0′
md5input=iouPad1 + iouPad2 + struct.pack(‘!i’, ioukey) + iouPad1
iouLicense=hashlib.md5(md5input).hexdigest()[:16]
print(“nAdd the following text to ~/.iourc:”)
print(“[license]n” + hostname + ” = ” + iouLicense + “;n”)
with open(“iourc.txt”, “wt”) as out_file:
out_file.write(“[license]n” + hostname + ” = ” + iouLicense + “;n”)
print(“^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^nAlready copy to the file iourc.txtn “)
print(“You can disable the phone home feature with something like:”)
print(” echo ‘127.0.0.127 xml.cisco.com’ >> /etc/hostsn”)
Cisco Asa Activation Key Generator
Here’s how to generate the license using the Keygen.
i) Access the shell of your VM
ii) Download the Keygen in the directory /opt/gns3/images/IOU using the following command.
wget http://www.ipvanquish.com/download/CiscoIOUKeygen3f.py
iii) Once copied run the following command to generate the license.
python3 CiscoIOUKeygen3f.py
iii) Now, you can see that there is a new text file created named iourc.txt. It’s the file holding the license. You can open it to see the license.
iv) Now add the license to the empty field at Preference > IOS on UNIX. There you go, your IOU image will now run absolutely error free.