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emulate CISCO ASA 8.4 on GNS3

This tutorial is outdated. New tutorial can be found at  . It is our new blog :-)

Today, I would like to share how to setup ASA 8.4 Firewall on GNS3.

[1] Download asa image for GNS3

here is the link :-
This file contain with initrd, vmlinuz and asdm 6.4

In any case above link is not working use below alternative link to download the file :-
link 1 :-
link 2 :-

[2] Download & Install GNS3

You can download latest version from

[3] Configure GNS3 for ASA

go to "Edit" --> "Preferences..."
On "Preferences" window, select "Qemu" and then choose "ASA" from the tabs

Fill the ASA setting & ASA Specific Settings as below . Screen capture is attached for your reference.

GNS3 Preferences

Qemu Options  & Kernel cmd line is important

Identifier name :     ( you can give any name )
RAM :     1024MB  ( at least 1024MB)
Qemu Options :     -vnc none -vga none -m 1024 -icount auto -hdachs 980,16,32
Kernel cmd line :     -append ide_generic.probe_mask=0x01 ide_core.chs=0.0:980,16,32 auto nousb console=ttyS0,9600 bigphysarea=65536

Click " save " and then "OK" and exit form that window.
drag and drop ASA firewall into work enviroment and run, It may take some time to boot please be patient !

[4] Configure activation keys

you can use one of below activation key
0x4a3ec071 0x0d86fbf6 0x7cb1bc48 0x8b48b8b0 0xf317c0b5
0xb23bcf4a 0x1c713b4f 0x7d53bcbc 0xc4f8d09c 0x0e24c6b6

for example :-

ciscoasa#conf t
ciscoasa(config)#activation-key 0x4a3ec071 0x0d86fbf6 0x7cb1bc48 0x8b48b8b0 0xf317c0b5

now it is done.

This post first appeared on Shehan's Blog, please read the originial post: here

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emulate CISCO ASA 8.4 on GNS3


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