Describe the bug GNS3 starts fine but the GNS VM indicator does not turn green.

GNS3 version and operating system (please complete the following information): Windows 10 Pro Version 1909 (OS Build 18363.778) Running GNS3 version 2.2.7 on Windows (64-bit) with Python 3.6.8 Qt 5.12.1 and PyQt 5.12. Copyright (c) 2006-2020 GNS3 Technologies.

• Any use of the GNS3 VM or remote server (ESXi, bare metal etc.) VMware® Workstation 15 Pro 15.5.2 build-15785246

To Reproduce Steps to reproduce the behavior: Start GNS3. Wait for GNS3 VM to be fully started. Click on GNS3 menu to open an existing project.

Screenshots or videos If applicable, add screenshots (e.g. of the topology and/or error message) or links to videos to help explain the problem. This will help us a lot to quickly find the bug and fix it.

Additional context So far, the only fix is to close GNS3, thus closing VMware Workstation, doing a repair for VMWare Workstation (reset all VMware virtual nics to their default values) and running vmnet-manager.cmd. GNS3 then works fine until I close it, restart my workstation and try to run it again.

BTW. a similar if not the same issue has been report on gns3.com under community/questions. "Cannot connect to compute 'GNS3 VM (GNS3 VM)' with request POST /projects"

I am having this issue when trying to open the mac desktop app 2.1.0rc3 (haven't tried previous versions)

Process: gns3 [1324] Path: /Volumes/VOLUME/GNS3.app/Contents/MacOS/gns3 Identifier: net.gns3 Version: 2.1.0rc3 (GNS3 v2.1.0rc3) Code Type: X86-64 (Native) Parent Process: ??? [1] Responsible: gns3 [1324] User ID: 501

Date/Time: 2017-10-30 15:54:23.465 +0000 OS Version: Mac OS X 10.12.6 (16G29) Report Version: 12 Anonymous UUID: D8B1FD44-C1CB-D0BD-EDA5-827364C0D73A

Sleep/Wake UUID: B820D37B-72BF-40E7-9B28-88F06CDFB382

Time Awake Since Boot: 17000 seconds Time Since Wake: 2000 seconds

System Integrity Protection: enabled

Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Exception Type: EXC_BAD_INSTRUCTION (SIGILL) Exception Codes: 0x0000000000000001, 0x0000000000000000 Exception Note: EXC_CORPSE_NOTIFY

Termination Signal: Illegal instruction: 4 Termination Reason: Namespace SIGNAL, Code 0x4 Terminating Process: exc handler [0]

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 sip.so 0x000000010c7125ea sipOMInit + 15 1 sip.so 0x000000010c703e4b PyInit_sip + 755 2 Python 0x000000010be06b0d _PyImport_LoadDynamicModuleWithSpec + 486 3 Python 0x000000010be066ef _imp_create_dynamic + 252 4 Python 0x000000010bd89553 PyCFunction_Call + 317 5 Python 0x000000010bdee890 _PyEval_EvalFrameDefault + 27794 6 Python 0x000000010bdf18b1 _PyEval_EvalCodeWithName + 1910 7 Python 0x000000010bdf1f8f fast_function + 241 8 Python 0x000000010bdf10ae call_function + 524 9 Python 0x000000010bdee4ea _PyEval_EvalFrameDefault + 26860 10 Python 0x000000010bdf2236 _PyFunction_FastCall + 121 11 Python 0x000000010bdf10ae call_function + 524 12 Python 0x000000010bdee4ea _PyEval_EvalFrameDefault + 26860 13 Python 0x000000010bdf2236 _PyFunction_FastCall + 121 14 Python 0x000000010bdf10ae call_function + 524 15 Python 0x000000010bdee4ea _PyEval_EvalFrameDefault + 26860 16 Python 0x000000010bdf2236 _PyFunction_FastCall + 121 17 Python 0x000000010bdf10ae call_function + 524 18 Python 0x000000010bdee4ea _PyEval_EvalFrameDefault + 26860 19 Python 0x000000010bdf2236 _PyFunction_FastCall + 121 20 Python 0x000000010bdf10ae call_function + 524 21 Python 0x000000010bdee4ea _PyEval_EvalFrameDefault + 26860 22 Python 0x000000010bdf2236 _PyFunction_FastCall + 121 23 Python 0x000000010bd50061 _PyObject_FastCallDict + 218 24 Python 0x000000010bd50d76 _PyObject_CallMethodIdObjArgs + 240 25 Python 0x000000010be05937 PyImport_ImportModuleLevelObject + 923 26 Python 0x000000010bdecdf5 _PyEval_EvalFrameDefault + 20983 27 Python 0x000000010bdf18b1 _PyEval_EvalCodeWithName + 1910 28 Python 0x000000010bde7b4e PyEval_EvalCode + 100 29 Python 0x000000010bde5538 builtin_exec + 524 30 Python 0x000000010bd89553 PyCFunction_Call + 317 31 Python 0x000000010bdee890 _PyEval_EvalFrameDefault + 27794 32 Python 0x000000010bdf18b1 _PyEval_EvalCodeWithName + 1910 33 Python 0x000000010bdf1f8f fast_function + 241 34 Python 0x000000010bdf10ae call_function + 524 35 Python 0x000000010bdee4ea _PyEval_EvalFrameDefault + 26860 36 Python 0x000000010bdf2236 _PyFunction_FastCall + 121 37 Python 0x000000010bdf10ae call_function + 524 38 Python 0x000000010bdee4ea _PyEval_EvalFrameDefault + 26860 39 Python 0x000000010bdf2236 _PyFunction_FastCall + 121 40 Python 0x000000010bdf10ae call_function + 524 41 Python 0x000000010bdee4ea _PyEval_EvalFrameDefault + 26860 42 Python 0x000000010bdf2236 _PyFunction_FastCall + 121 43 Python 0x000000010bdf10ae call_function + 524 44 Python 0x000000010bdee4ea _PyEval_EvalFrameDefault + 26860 45 Python 0x000000010bdf2236 _PyFunction_FastCall + 121 46 Python 0x000000010bd50061 _PyObject_FastCallDict + 218 47 Python 0x000000010bd50d76 _PyObject_CallMethodIdObjArgs + 240 48 Python 0x000000010be05937 PyImport_ImportModuleLevelObject + 923 49 Python 0x000000010bdecdf5 _PyEval_EvalFrameDefault + 20983 50 Python 0x000000010bdf18b1 _PyEval_EvalCodeWithName + 1910 51 Python 0x000000010bde7b4e PyEval_EvalCode + 100 52 Python 0x000000010bde5538 builtin_exec + 524 53 Python 0x000000010bd89553 PyCFunction_Call + 317 54 Python 0x000000010bdee890 _PyEval_EvalFrameDefault + 27794 55 Python 0x000000010bdf18b1 _PyEval_EvalCodeWithName + 1910 56 Python 0x000000010bdf1f8f fast_function + 241 57 Python 0x000000010bdf10ae call_function + 524 58 Python 0x000000010bdee4ea _PyEval_EvalFrameDefault + 26860 59 Python 0x000000010bdf2236 _PyFunction_FastCall + 121 60 Python 0x000000010bdf10ae call_function + 524 61 Python 0x000000010bdee4ea _PyEval_EvalFrameDefault + 26860 62 Python 0x000000010bdf2236 _PyFunction_FastCall + 121 63 Python 0x000000010bdf10ae call_function + 524 64 Python 0x000000010bdee4ea _PyEval_EvalFrameDefault + 26860 65 Python 0x000000010bdf2236 _PyFunction_FastCall + 121 66 Python 0x000000010bdf10ae call_function + 524 67 Python 0x000000010bdee4ea _PyEval_EvalFrameDefault + 26860 68 Python 0x000000010bdf2236 _PyFunction_FastCall + 121 69 Python 0x000000010bd50061 _PyObject_FastCallDict + 218 70 Python 0x000000010bd50d76 _PyObject_CallMethodIdObjArgs + 240 71 Python 0x000000010be05937 PyImport_ImportModuleLevelObject + 923 72 Python 0x000000010bdecdf5 _PyEval_EvalFrameDefault + 20983 73 Python 0x000000010bdf18b1 _PyEval_EvalCodeWithName + 1910 74 Python 0x000000010bde7b4e PyEval_EvalCode + 100 75 Python 0x000000010bde5538 builtin_exec + 524 76 Python 0x000000010bd8961a _PyCFunction_FastCallDict + 172 77 Python 0x000000010bdf10d4 call_function + 562 78 Python 0x000000010bdee4ea _PyEval_EvalFrameDefault + 26860 79 Python 0x000000010bdf2236 _PyFunction_FastCall + 121 80 Python 0x000000010bdf10ae call_function + 524 81 Python 0x000000010bdee4ea _PyEval_EvalFrameDefault + 26860 82 Python 0x000000010bdf2236 _PyFunction_FastCall + 121 83 Python 0x000000010bd50061 _PyObject_FastCallDict + 218 84 net.gns3 0x000000010bd3c876 main + 646 85 libdyld.dylib 0x00007fffe9dff235 start + 1

Thread 0 crashed with X86 Thread State (64-bit): rax: 0x0000000000000000 rbx: 0x000000010c718148 rcx: 0x0000000000000000 rdx: 0x0000000000000000 rdi: 0x000000010c718148 rsi: 0x0000000000000036 rbp: 0x00007fff53ec10c0 rsp: 0x00007fff53ec10b0 r8: 0x00007fa13b04a668 r9: 0xc3b1b0039c19148f r10: 0x0000000000000036 r11: 0x0000000064696f76 r12: 0x0000000000000000 r13: 0x000000010c40fc88 r14: 0x000000010c6c6e08 r15: 0x000000010c6c73a8 rip: 0x000000010c7125ea rfl: 0x0000000000010246 cr2: 0x000000010c7125db

Logical CPU: 1 Error Code: 0x00000000 Trap Number: 6

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External Modification Summary: Calls made by other processes targeting this process: task_for_pid: 0 thread_create: 0 thread_set_state: 0 Calls made by this process: task_for_pid: 0 thread_create: 0 thread_set_state: 0 Calls made by all processes on this machine: task_for_pid: 8746 thread_create: 0 thread_set_state: 0

VM Region Summary: ReadOnly portion of Libraries: Total=133.6M resident=0K(0%) swapped_out_or_unallocated=133.6M(100%) Writable regions: Total=38.5M written=0K(0%) resident=0K(0%) swapped_out=0K(0%) unallocated=38.5M(100%)

                            VIRTUAL   REGION 

REGION TYPE SIZE COUNT (non-coalesced) =========== ======= ======= Kernel Alloc Once 8K 2 MALLOC 26.7M 15 MALLOC guard page 16K 4 MALLOC_LARGE (reserved) 512K 3 reserved VM address space (unallocated) STACK GUARD 56.0M 2 Stack 8192K 2 VM_ALLOCATE 3072K 8 __DATA 3716K 65 __LINKEDIT 115.4M 19 __TEXT 18.2M 61 __UNICODE 556K 2 shared memory 12K 4 =========== ======= ======= TOTAL 232.0M 175 TOTAL, minus reserved VM space 231.5M 175

Anybody can help??

Report by @jean-christophe-manciot

One example is the following source 0.8.3 project:

... converted into the following destination 1.3.1 Linux project:

This lab is attached. All the labs collection is available here (https://community.gns3.com/external-link.jspa?url=https%3A%2F%2Flearningnetwork.cisco.com%2Fthread%2F43019) to perform tests on a wide variety of labs.

Another example with this RIPng project converted from 0.8.5:

... to 1.3.1/Linux:

https://community.gns3.com/ideas/1757

Hi

These last days, i plays with qemu and also API....and i have often these error messages Perhaps i do errors, but i think not.

In topology, i mix qemu and vbox VM. After some time, i have this error messages and gns3 be back to the windows "Please create a project" :

2017-02-12 19:45:17 ERROR compute_manager.py:70 Error while getting compute list: Unknown error 2017-02-12 19:45:23 CRITICAL init.py:110 Unknown error 2017-02-12 19:45:23 ERROR compute_manager.py:70 Error while getting compute list: Unknown error

Server Version: 2.0.rc1 Client Version: 2.0.rc1 Server System: VM imported to ESXi server Client System: Windows 10

Symptom: When importing a gns3a the client goes through the wizzard but hanges with a window "Please Wait: Waiting for http://192.168.1.17:3080". If you close the box it reappears and starts over and hangs again. You can kill the entire GNS3 client and start it fresh and the dialog will be gone, however the appliance is not listed in the client.

If you inspect the GNS3 server images directory, the appliance image did in fact get uploaded to the server.

Troubleshooting steps done: Wipe %appdata%\GNS3 on the client computer and recreate everything fresh from the wizard. I've enabled debug 2 in an attempt to gather any information that would identify the cause. However, the Please Wait dialog makes it impossible to access the console window and read any of the logs. On some occasions the appliance is created on the client after killing the process, but the window still hangs at 99% and refuses to go away.

Please let me know if you need any more information to debug this issue.

Not able to install GNS3 2.2.12

Microsoft Windows 10 Professional VirtualBox 6.1 GNS3 VM

Run appliance in virtual machine wizard result the following error: Error while saving settings: GNS3VM: Error while executing VBoxManage command: VirtualBox has returned an error: VBoxManage.exe: error: Cannot enable nested VT-x/AMD-V without nested-paging and unresricted guest execution! VBoxManage.exe: error: (VERR_CPUM_INVALID_HWVIRT_CONFIG) VBoxManage.exe: error: Details: code E_FAIL (0x80004005), component ConsoleWrap, interface IConsole

Is your feature request related to a problem? Please describe.

Currently you can't easily transfer data to/from a QEMU VM. Especially transfering configurations would be very helpful. Issue #1095 wants to create a very comfortable way to share configurations similar to the current Dynamips/IOU solution. But it's also very complex to implement. For every device type a special solution must be found.

This idea should be ways simpler to implement, but is not as comfortable as #1095. This can serve as a transitional solution until a full import/export tool is available.

Describe the solution you'd like

Each QEMU device gets an empty 1MB FAT non-cloned raw image added as harddisk D. As almost every system supports FAT disks, the user gets an external storage device, where he can save configurations, but also other informations. It's a sort of virtual USB stick. GNS3 implements methods to transfer the files from this image via the GNS3 GUI to the user's host.

Transfering files from the image to the GUI:

• GUI sends request to server
• Server uses the mtools (https://www.gnu.org/software/mtools/) to extract the files from the raw image, puts them into a .zip archive and sends it to the GUI.
• The GUI stores that .zip file or optionally extracts it

Transfering files from the GUI to the image:

• GUI puts the files into a .zip archive and sends it to the server
• Server extracts the files from the zip archive, adds them with the mtools into an empty FAT image and uses this as the new harddisk D.

Advantages:

• Much simpler to implement as #1095
• Can be used for all file types, it's not limited to configuration files
• Supports a wide range of devices, no device specific code is needed
• Can store multiple files/configurations
• Uses only user mode tools to access the image, no root privileges needed

Disadvantages:

• The user must manually tranfer configurations from/to this virtual disk, the configuration doesn't get automatically activated.
• For performance reasons the virtual disk size should be limited, it's not intended for exchanging big files
• Works only when the VM is switched off

Hi

On Linux

I connect a VMBox to ethernet switch. This ethernet switch is connected to Cloud device

The VMBox gets IP with DHCP of "Internet". The VMBox communicates with Internet.

I am waiting 10 minutes without using network in VMBox.

Then, VMBox can not communicate with Internet

Perhaps, the same bug as #1763

Hi

I don't know if it is really an bug of GNS3, or VirtualBox or Debian.

Sometimes, on the lab of my students, i see that network from Linux VBox doesn't work. I must shutdown the interface (ifdown eth0) and no-shutdown (ifup eth0) to correct it. In this case, i never see error of config

For example, when i reload this lab, VM Debian-1 or Serveur doesn't start or network of this Linux doesnt work (i must ifdown/ifup) :

While VPCS is a very small and fast program to simulate an end device it has a mayor drawback. For a full end device it has to implement a full TCP/IP stack in user space. VPCS currently supports only IP/ICMP/DHCP (and even that has some bugs). But something like telnet or even ssh from VPCS to a connected router is not supported and it will be a BIG task to implement that.

The alternatives:

1. Use a user mode TCP/IP library like lwIP http://savannah.nongnu.org/projects/lwip/
   This would help implementing the network protocol, nevertheless it will be a lot of work adding the command processing and the user applications (ifconfig, ping, telnet).
2. Use a router as a end device
   But what type of router? It should be something free, so it can be distributed with GNS3. But when it's not cisco like, the user has to learn a new device type.
3. Use a small linux docker image (like alpine)
   Extremely efficient and fast, solid linux TCP/IP stack and a load of useful user programs. But it requires the GNS3VM (or another linux based GNS3 server). Some interface settings are difficult for the non-linux enthusiasts, some ideas to handle that later.
4. Use a small (MicroCore) VM
   That will work even with the old QEMUs from Windows/OS X, but it needs some time for boot (25s in OS X with qemu 0.14.1, 10s with qemu in GNS3 VM).

I'm for a linux based solution, because almost everything is there, it has proven it's quality and it's efficient.

For making the IP configuration a little bit easier: A special ifconfig program implements ifconfig <interface> dhcp start|stop|status to make DHCP configuration easier and ifconfig save to make the current IP configuration persistent. All other ifconfig commands will be passed to the original ifconfig.

Describe the bug Fails to launch in macOS big sur

GNS3 version and operating system (please complete the following information):

• OS: macOS
• GNS3 version 2.2.7

To Reproduce Steps to reproduce the behavior:

1. Download and Open

Describe the bug Cannot create an empty Qcow2 disk image when using the manual template wizard

GNS3 version and operating system (please complete the following information):

• OS: ArchLinux
• GNS3 version: 3.0.0 alpha 3
• GNS3 server and GUI are running on same machine (bare metal)

To Reproduce Steps to reproduce the behavior:

1. Click on File ---> New template and select Manually create a new template then from Preferences window select Qemu VM from the right pane and then click on New button to start creating a new template.
2. Follow the wizard steps and type a name for the virtual machine, allocate RAM, select console type then proceed to select a disk image.
3. On the Disk image page choose New image and the click on Create button.
4. Leave everything at default (disk image format, options and disk size) and click on Finish.
5. The image is not created and an exception is generated in the GNS3 console.

Additional context ****** Exception detected, traceback information saved in /home/cioby/.config/GNS3/3.0/exceptions.log ******

PLEASE REPORT ON https://www.gns3.com

Traceback (most recent call last): File "/usr/lib/python3.10/site-packages/gns3/modules/qemu/dialogs/qemu_image_wizard.py", line 176, in _createDisk self._node.createDiskImage(disk_image_filename, options, self._getCreateDiskServerCallback) AttributeError: 'str' object has no attribute 'createDiskImage'

Describe the bug GNS3 will not keep my preferences not matter what I do. I have a stand alone ESXi that I am running GNS3 VM on, everytime I restart GNS3 it loses whatever I configure for the remote server, not only this but all my templates are also gone.

GNS3 version and operating system (please complete the following information):

• OS: [Windows 11S]
• GNS3 version [2.2.35.1]
• Any use of the GNS3 VM or remote server (ESXi)

To Reproduce Steps to reproduce the behavior:

1. restart GNS3

Before you start Please open an issue only if you suspect there is a bug or any problem with GNS3. Go to https://gns3.com/community for any other questions or for requesting help with GNS3.

You may also post this issue directly on the GNS3 server repository if you know the bug comes from the server: https://github.com/GNS3/gns3-server/issues/new

Describe the bug Hello, so, I'm not able to insert a NAT node to my topology, it says "NAT interface virbr0 is missing, please install libvirt". The thing is I already have libvirt and the service is already running, also my user is already in the 'kvm' and 'libvirt' group.

I tried starting gns3 in 2 ways, one is using the start-gns3vm.sh script that you get inside the GNS3.VM.KVM..zip file, the second is with virt-manager, both resulting to the same problem.

I already tried all suggestions I found on the internet, such as:

1. Messing with virsh, tried undefining and redefining the 'default' config
2. Changing firewall from ufw to firewalld
3. Restarting libvirtd service

Also, selecting the "Test | Check Internet connection" in the GNS3 menu shows that connection to internet is OK.

GNS3 version and operating system (please complete the following information):

• OS: Linux (Arch Linux)
• GNS3 version: Tried 2.2.34, 2.2.26, 2.2.19 (all are the KVM version)
• Any use of the GNS3 VM or remote server (ESXi, bare metal etc.): No

To Reproduce Steps to reproduce the behavior:

1. Start a version of gns3 kvm
2. Go to the web ui
3. Add a NAT node, get the error "NAT interface virbr0 is missing, please install libvirt"

Sorry for my bad English, help is so much appreciated! Thanks in advance.

Additional Notes I'm able to run and add a NAT node to gns3-gui natively and through VMWare perfectly, it's just I can't find a way to do it through QEMU/KVM.

Currently GNS3 allows you to set some default values (Font, Color) for Labels and Notes.

Please add a similar section under GNS3 Edit --> Preferences --> Topology view page to configure default values for links (like Width, Color, Style)

Hi

On LiveRaizo v13 (Debian 11), and GNS3.0, i try to add a QEmu VM

I remove my old GNS3's config with rm

I create a empty config of GNS3 3.0 gns3server, stopped by CTRL+C

I run gns3

In preference, i add a QEmu VM. I use default values except for disk : /opt/raizo/user/OS/QEMU/VM-Raizo.raw I don't copy it in the default folder.

When i close the global preference menu, GNS3 displays this message : 2022-10-05 13:12:48 ERROR http_client:761 Image '/opt/raizo/user/OS/QEMU/VM-Raizo.raw' could not be found in the controller database