![]() ![]() When adding the IOS image with the remote hypervisor, make sure that your remote hypervisor is selected. Use the "Linux format" directory notation (see screenshot), and make sure that the "use the hypervisor manager" checkbox is unchecked so that you can select the remote hypervisor that you just added. There are two important bits to remember: Once you have your remote hypervisor added, go back to the "IOS images" tab and add in IOS images. Once you've filled in the IP of your remote hypervisor, click "Save". Add in the IP address info for your remote hypervisor (Most of the time you can leave all the fields besides IP address as the default). The following instructions assume your remote hypervisor is running Linux. This would also be ideal for folks that don't want to spend the money on a high-end server but can afford to spend a few dollars for a few hours of "server time" for GNS3 labs, without chewing up CPU cycles on their home machines. GNS3 WORKBENCH HOW TOI've documented how to do this at my last job (but this was before GNS3 was so popular) and we used it successfully for numerous scale tests. A setup with a utility computing provider would also be extremely useful for testing out topologies with a very large number of routers, to see how OSPF may behave at scale, etc. You can even use this setup with Amazon EC2 (or another utility computing provider). Back in GNS3 give an IP address on the same range to the device you connected to the virtual appliance.I'll go ahead and provide some more "in-depth" instructions on telling GNS3 to use a "remote hypervisor" (a dynamips instance listening on another machine). Use option ‘6’ and make sire the virtual machine has a good connection to the internet.Ībove you can see the appliance has a LAN IP of 192.168.1.1. You will know when you have the network cards right, as the ‘WAN’ will get an IP from your NAT Network. Note: This is why I still use Virtualbox for this, in VMware Fusion any changes you make to the NICs are hijacked by GNS3 when you add and start the VM, with Virtualbox they are not. ![]() GNS3 WORKBENCH MACNow manually set the other NIC to be connected to your NAT Network, this network will nat the VM’s NIC out to the the internet connection being used by the Mac (either wired or wireless). Now back in Virtualbox > Look at the NIC settings for the GW1 appliance, the one connected to GNS3 should say ‘Generic Driver’ and UDP Tunnel Now drag the GW appliance onto your GNS3 work area, and connect to a router (or anything you can configure an IP on). Now in GNS3 > Preferences > Virtualbox > Virtualbox VMs > Add > Add in the GW1 appliance > Edit > Give it TWO network cards > Ensure ‘All GNS3 to use any configured Virtualbox adapter’ is NOT ticked > OK. I’m using Version 5.0.16 r105871ĭownload the GW1 appliance (link above) and extract the files, then from within Virtualbox > Machine > Add > Locate the extracted GW1 appliance > Open. Virtualbox (This wont work with VMware Fusion unfortunately, I’ve tried).Despite my efforts to find a better way of doing this, it remains the easiest, simplest, solution, and works over wireless/wired connections etc. ![]() I could not connect my new mac GNS3 labs to the internet, so he gave me a VM that did the hard work for me. Kudos and credit for this solution goes to my colleague Steve. When I swapped to Mac he was my ‘go-to-guy’ for ‘how does this work’ and ‘what’s the Mac equivalent of ’ questions. The documented method of doing this, is to use tun tap interfaces and run GNS3 as root and connect things together. GNS3 WORKBENCH WINDOWSWith Windows this is easy, (I’ve probably blogged about it before), drag a cloud onto the workbench and connect it to a network card, job done! On a Mac however it’s a whole different ball game, as I found out last year when I swapped from Windows to Mac. But when I try to do simple things, like connect my projects/labs to the internet and it’s massively overcomplicated I get pretty exasperated. I also appreciate that it’s free, and people put a lot of effort into its development for very little reward. I have a love hate relationship with GNS3, I appreciate it’s brilliant, (when it works). ![]()
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