I was almost determined to give up using this laboratory, I'm not kidding. I even downloaded malware yesterday trying to find these two files. but thank god your video gave me the solution; made me want to continue. * Sorry if I made a typo. I don't speak English, and I used the Google translator to be able to post here on your video. Thank you very much brother, very grateful to share your knowledge. A hug. God be with you

I was in the same boat as Acer Aspire. I was ready to give up on Eve-NG as the IOL L2 and L3 Switch images were not starting (only 7200 Dynamips router image was working). But, this worked and I now able to use the Switches as well. Many thanks for your excellent step-by step video.

You're the best! Thank you so much! I actually had to tweak a couple things, but I eventually got it to work. Trying to fixpermissions using "/wrappers//unl wrapper" didn't seem to work, but a single "/" instead of "//" worked. I couldn't copy/paste license with a mouse (OracleVM). I was able to use FileZilla a .txt over and rename it. (Actually, the keygen I copy/pasted from your site didn't work, but I was able to find another one.) Ultimately, your guide got me to where I needed to get! Thanks a million! My future children also thank you.

It's wonderful! Many thanks.!

You're the best! Thanks PRO

Many thanks. very helpful for this case.

Thank you for the share the valuable information.

Very helpful. Thank you! +1 sub

So helpful. Thank you!!

Tks for your help

hi sir, please how can i get the key generate python script ? the link below the video does not exist. Wish you help me

Fixed the issue by converting the script to python3 and also modifying some of the config: Steps: > vi Ciscokey.py press i for insert ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ #! /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'\x4B\x58\x21\x81\x56\x7B\x0D\xF3\x21\x43\x9B\x7E\xAC\x1D\xE6\x8A' iouPad2 = b'\x80' + 39*b'\0' md5input=iouPad1 + iouPad2 + struct.pack('!I', ioukey) + iouPad1 iouLicense=hashlib.md5(md5input).hexdigest()[:16] print(" Add the following text to ~/.iourc:") print("[license] " + hostname + " = " + iouLicense + "; ") with open("iourc.txt", "wt") as out_file: out_file.write("[license] " + hostname + " = " + iouLicense + "; ") print("^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Already copy to the file iourc.txt ") print("You can disable the phone home feature with something like:") print(" echo '127.0.0.127 xml.cisco.com' >> /etc/hosts ") ++++++++++++++++++++++++++++++ press escape to get of insert mode !wq ! Grant execution permission: > chmod +x Ciscokey.py !Generate the key: > python3 Ciscokey.py Now you can use the generated key and save in iourc nano -c iourc End Good Luck:

Thanks it helped

many thanx

this method doesnt work for me either. the node (catalyst 3560) starts and then stops after a few seconds

Hi, Thanks for the video. How could we paste the script on Windows while running VMware Workstation 15 Player. I open the GNU nano 2.5.3 but I can't R-click or use Ctrl+V

link it is not working ,can you write another link

sudo: unable to execute ./CiscoKey.py: No such file or directory this error why?

It is working.how can i do it same on ASAv License

am still struggling in 5:39 , i cant view the license after typing the code sudo ./CiscoKey.py

i am running the python script...but not able to generate key...any solution?

I keep getting this when running the sudo ./Cisco.py command Cisco IOU License Generator - Kal 2011, python port of 2006 C version Modified to work with python3 by c_d 2014 hostid=8e0a0500, hostname=eve-comm1, ioukey=8e0a084a Traceback (most recent call last): File "./Cisco.py", line 21, in md5input=iouPad1 + iouPad2 + struct.pack('!i', ioukey) + iouPad1 struct.error: 'i' format requires -2147483648

hi, i followed your script but when i click start on my router it will start and stop at the same time.

when I type "/opt/unetlab/wrappers/unl_wraper -a fixpermissions" it apears "ERROR: Unlicensed"

do not exist youre site

dead link man

I have tried many times but getting this error =============================================================================== Cisco IOU License Generator - Kal 2011, python port of 2006 C version hostid=800a0200, hostname=myserver, ioukey=800a057d Traceback (most recent call last): File "CiscoIOUKeygen.py", line 18, in md5input=iouPad1 + iouPad2 + struct.pack('!i', ioukey) + iouPad1 struct.error: 'i' format requires -2147483648