It should have uncompressed successfully.įrom the output, you will notice the unpacked IOS image filename is C3725-AD.BIN. ![]() $ unzip Archive: warning : 28328 extra bytes at beginning or within zipfile (attempting to process anyway) inflating: C3725-AD.BIN You can safely ignore the warning message. I will first navigate to the directory where I have it saved ( /Users/marc/Downloads/Labs ), so I would run this command from Terminal.app : I will be using the image file in my example. Let's now unpack the image file and move it to the Images folder. Feel free to use the Finder, but I will use the command line method in my example.Ĭreate the main GNS3 folder and subfolders. Note : Recent versions of GNS3 include multiple versions of the Dynamips binary file.Ĭreate the main GNS3 folder as well as the GNS3/Projects, GNS3/Images, and GNS3/Tmp subfolders in your Documents folder. $ ls -oh /Applications/GNS3.app/Contents/Resources/dynamips*.bin - 1 root 1.0M Sep 9 21:01 /Applications/GNS3.app/Contents/Resources/dynamips-0.2. - 1 root 958K Sep 9 21:01 /Applications/GNS3.app/Contents/Resources/dynamips-0.2. $ sudo chmod 4755 /Applications/GNS3.app/Contents/Resources/dynamips*.bin Modify the setuid attribute for the Dynamips binary file(s). $ sudo chown root /Applications/GNS3.app/Contents/Resources/dynamips*.bin The Dynamips process will need to run with elevated privileges (root) to "attach" the TAP devices.Ĭhange the ownership of the Dynamips binary file(s) to the root user. We also need to change the ownership and permissions for the Dynamips binary file(s). Open the GNS3 DMG image file, and move the GNS3.app to the Applications folder. You should see the device files listed (tap0 - tap15).Ĭrw-rw- 1 root wheel 33, 0 Oct 5 07:27 tap0 crw-rw- 1 root wheel 33, 1 Oct 5 07:27 tap1 crw-rw- 1 root wheel 33, 10 Oct 5 07:27 tap10 crw-rw- 1 root wheel 33, 11 Oct 5 07:27 tap11 crw-rw- 1 root wheel 33, 12 Oct 5 07:27 tap12 crw-rw- 1 root wheel 33, 13 Oct 5 07:27 tap13 crw-rw- 1 root wheel 33, 14 Oct 5 07:27 tap14 crw-rw- 1 root wheel 33, 15 Oct 5 07:27 tap15 crw-rw- 1 root wheel 33, 2 Oct 5 07:27 tap2 crw-rw- 1 root wheel 33, 3 Oct 5 07:27 tap3 crw-rw- 1 root wheel 33, 4 Oct 5 07:27 tap4 crw-rw- 1 root wheel 33, 5 Oct 5 07:27 tap5 crw-rw- 1 root wheel 33, 6 Oct 5 07:27 tap6 crw-rw- 1 root wheel 33, 7 Oct 5 07:27 tap7 crw-rw- 1 root wheel 33, 8 Oct 5 07:27 tap8 crw-rw- 1 root wheel 33, 9 Oct 5 07:27 tap9Ī reboot of the computer may be required if the virtual devices are not listed in the output. Verify the TunTap package installed successfully. Unpack and install the downloaded TunTap package. ![]() The TAP drivers allow us to bridge our GNS3 virtual network with the physical Mac host. The TunTap package will provide us with a collection of virtual network interfaces for the Mac operating system. You can grab the components needed for this tutorial from their respective websites:
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