Generate Cisco iourc license key on GNS3 VM with Python 3

Pada GNS3 versi 2, keluar error “License section not found in iourc file /tmp/tmpldzkb0j6/iourc” saat running IOU image di GNS3. Untuk memperbaikinya bisa dengan generate iourc.txt dan upload via GNS3 GUI secara manual.

Melalui shell GNS3, open console

Download file CiscoIOUKeygen3f.py di www.ipvanquish.com

gns3@gns3vm:~$ wget http://www.ipvanquish.com/download/CiscoIOUKeygen3f.py
--2018-02-24 13:09:42--  http://www.ipvanquish.com/download/CiscoIOUKeygen3f.py
Resolving www.ipvanquish.com (www.ipvanquish.com)... 103.64.148.113, 64:ff9b::6740:9471, 64:ff9c::6740:9471
Connecting to www.ipvanquish.com (www.ipvanquish.com)|103.64.148.113|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1201 (1.2K)
Saving to: ‘CiscoIOUKeygen3f.py’

100%[======================================>] 1,201       --.-K/s   in 0s      

2018-02-24 13:09:43 (37.7 MB/s) - ‘CiscoIOUKeygen3f.py’ saved [1201/1201]

Lalu eksekusi file tersebut

gns3@gns3vm:~$ python3 CiscoIOUKeygen3f.py
*********************************************************************
Cisco IOU License Generator - Kal 2011, python port of 2006 C version
hostid=00000000, hostname=gns3vm, ioukey=25e

Add the following text to ~/.iourc:
[license]
gns3vm = 7xxxxxxxxxxxxxxx;;

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Already copy to the file iourc.txt
 
You can disable the phone home feature with something like:
 echo '127.0.0.127 xml.cisco.com' >> /etc/hosts

Copy bagian [license] ke file txt dan diberi nama file iourc.txt.

[license]
gns3vm = 7xxxxxxxxxxxxxxx;

Di GNS3, buka Preferences lalu di bagian IOS on UNIX pilih Browse > masukkan file iourc.txt tadi.

Sekarang seharusnya sudah tidak ada masalah license iourc lagi di GNS3.