Im trying to have a simple topology by connecting a router (c7200) and the local machine which is windows 10. For this I use GNS3 GUI (not the VM application). I have to do that, due to the limit of the RAM I can't run GNS3 on VM, since even after setting up the topology I have to start Pycharm. I set up loopback adapter and GNS3 router configuration correctly but I couldn't connect them. I turned off the firewall and restarted the PC as well but didn't work out. It's really helpful if anyone can help me on this. GNS3 version is 2.2.15 on Windows (64-bit) with Python 3.6.8 Qt 5.12.1 and PyQt 5.12Thanks in advance.
Step 10. You need to set and IP address for the GNS3Loopback network card. You can change the IP address settings here. After configuring the IP address settings. Click OK to save the settings.
Step 14. IN the Cloud1 configuration window, you need to select the loopback network card you added in the Ethernet interfaces section. Once you have selected the GNS3Loopback adapter, click the Add button.
Step 17. Assign an IP address to the Cisco Router FastEthernet 0/0 interface and turn it on Then, test the connection by pinging the loopback IP address.Cloud1 and Cisco router can communicate with each other.
I have added a windows xp appliance to GNS3 from a working copy of a vmdk file after configuring the image as required but if open the console (TightVNC) as depicted above I am unexpectedly shocked to see the blue screen of death (depicted below). I assume this has to deal with the fact that the hardware configuration on the GNS3 for the appliance needs to be tweaked.
Boot from your XP CD-ROM, when you get to the setup screen, you want to press enter, not R. Follow the setup wizard, when you are prompted the second time to do a repair, press R, setup will detect the correct hardware and install the necessary drivers. Illustrated repair: -a-Windows-XP-%22Repair-Install%22
I was wondering if someone can tell me if using GNS3 would be a good idea for me to use to study for JNCIS-SP or -ENT. I'm using a windows 11 laptop and don't remember why, but had some issues settng up GNS3 when I tried a few years ago. All advice greatly appreciated.
Having just completed the JNCIP-SP, I would actually recommend EVE-NG or PNETLab. I have not used GNS3 in years so I can't speak totally knowledgeably on that software, but I don't think I could have passed my exam without creating several virtual lab scenarios in EVE-NG. Juniper also provides virtual router images and templates for EVE-NG, so getting started was super easy. Just a heads up, you will need to install EVE-NG directly on bare metal to run the vJunosRouter and vJunosSwitch. The juniper images will not run in a nested (running within VMware or some other type 1 hypervisor) configuration. This link may help you get started.
I'm looking into that link. Thanks for the help. I am new to most of this and I don't have an extra machine to run ubuntu. I may need some really basic level instructions, because the terms in that article are mostly not familiar to me.
I am going to look into EV-NG now that I read your reply more carefully. Thanks for the help. David Bombal has a video on how to install it and I'm \following it. My laptop is a windows machine with i5 core, so I may use it or get another machine to designate to this purpose.
If you are new to GNS3, you may not realise what a difference your choice of Terminal Application can make to your productivity. If you then use the same terminal application when you are at the coalface configuring routers, you may find some features invaluable.
But finding an application with all of these features is not as easy as you might think. Here is a run down of all the Terminal Applications that are supported natively from within GNS3 grouped by operating system.
In my opinion, Konsole is the best of all the Linux based terminals. The biggest drawback of Konsole is the fact that it is a KDE based application, rather than a Gnome based application, so if you are using a Gnome desktop environment the Konsole install is a hefty download and runs several more background processes than it would on a KDE environment.
The Linux install of PuTTY gives one window per device, similar to the default xterm console application. It must be installed before it can be summoned by GNS3, but PuTTY is easily installed on Ubuntu or Linux Mint from the Software Center/Manager.
The main trick to getting the most out of PuTTY is to know that you can press +Right-Click to bring up a menu where you can choose Change Settings to bring up the PuTTY Reconfiguration dialogue. Because it is so similar to the Windows version, it is very popular with folk who have to work across Linux and Windows platforms.
SecureCRT is a commercial program and the only application supported on all three OS flavours, but if you are serious about study you may consider forking out the reasonable license price. SecureCRT can be downloaded for a trial before you purchase from
SecureCRT features a multi-session tabbed interface with extensive session management and customisation features. Customisation options include toolbars, menus, keymaps, button bar, and login scripts, as well as fonts, cursors, and colour schemes. Since version 7.1, tiled windows are also supported.
The native OS X Terminal application is basic, and supports transparency, unlimited scrollback, search, and single-click copy and paste. The application supports tabs too, but not in a way that can be made use of by GNS3 (if someone is clever enough to write an applescript to open multiple tabs, please let us know on the GNS3 Forum).
The search feature is function is a live search that highlights all occurrences of the search term as you type, similar to Konsole, and it supports and single-click copy-and-paste as well as unlimited scrollback to make it the only application to get a perfect score.
SecureCRT on OS X essentially supports the same features as on Linux and Windows, which makes it a great application if you wish to use the same application across multiple operating systems. The OS X version has the same features and faults as the Linux version, so gets the same score.
SecureCRT on Windows essentially supports the same features as on Linux and OS X, which makes it a great application if you wish to use the same application across multiple operating systems. The Windows version has the same features and faults as the Linux version, so gets the same score.
Although a solid ssh and serial console client, for GNS3 use, it really has no advanced features. 10000 lines of scrollback and single-click cut-and-paste are the only points it scores.
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