![]() ![]() Once all this done I see server is connected to my GNS3 on client, you can see this in Server Summary section on GNS3, and the below topology is running on Server which I am managing from Macbook client. I did not check the authentication as I am not using it, you can use it.And for that below are the configurations. Now as a last step, we need to tell client to use server to run projects. So I preferred adding below rule in my server firewall. So we must have rules to allow tcp connections from client to server over these ports.Since there is a range of ports to add hence the easiest method to add the complete local subnet or the specific IP from where you are trying to connect to server. In first step the client will connect to GNS3 server over port 3080 and then the console connections will occur on port 5000 to 10000, all TCP. Now looking at the above screenshot, you might have guessed that there will be two phases in the connection. The “Console port” and “UDP tunnel port” ranges are populated by default. Password option : I don’t want it as I am connecting locallyĬheck the “allow connections” from any local IP.Port : This is the port over which clients will connect to Ubuntu machine.Host Binding : This is the local IP of the Ubuntu PC.You need to take care of everything in red box in below picture. NOTE : Both the client and server version of GNS3 should be same. Client Machine : Macbook OS Big sur Server Machine : Ubuntu 20.04 GNS3 Version : 2.2.22 And recently I did it, having prior experiences with GNS3, I was prepared that it is going to take some time but this time it was seamless and happened withing few mins.This saved me from the pain of maintaining GNS3 VM as Ubuntu doesn’t need GNS3 VM. This was working just fine but since the day I bought my Ubuntu I wanted to run GNS3 in client server mode. I have a server like configuration on my Ubuntu Machine, it has 64 GB memory so enough for my GNS3 practices.I used to VNC to this machine and run GNS3 on it. Hope I explained each steps to get a working IOU in GNS3-1.My love hate relationship with GNS3 has come to a next level!! You have success fully configured Layer 2 Switch in GNS3-1.1…! Go to GNS3 GUI and drag the switch in to work space. ![]() Now type a Name for the IOU image and set IOU image path that you noted already in Step 2. You will receive a message “ You have chosen to use a remote server, please provide the path to IOU image located on the server!”, just click OK. Your remote server will be listed there → Next Now go to IOU Devices, click New button and select server type as Remote. The set the path of iourc.txt (iourc.txt can be stored on any directory of your local PC, eg: Desktop), browse and select it. Go to Edit → Preferences → IOS on UNIX → General Settings Go to Edit → Preferences → GNS3 Server → Local Serverĭrop down the Host Binding section and choose 192.168.56.XX, local VirtualBox Host-Only Adapter IP (mine 192.168.56.101) and click Apply.Īgain Edit → Preferences → GNS3 Server → Remote ServerĪdd a host by entering UNIX GNS3 IOU VM IP address that we noted in Step 2 (mine 192.168.56.101) and 8000 as port. Step 3: GNS3 Server Configurationīy default GNS3 host binding is 127.0.0.0:8000 (local host loopback) address, we have to change the server to 192.168.56.XX:8000. Ĭhoose your IOU image and click Upload button. Enter the following link in the address bar. Now come to the host machine and open any browser (I’m a Chrome fan). Password: cisco Step 2: Upload IOU Image to Unix (GNS3 IOU VM)Ĭheck the IP address of the GNS3 IOU VM by ifconfig command and note down the IP (my case 192.168.56.102). Start the GNS3 IOU VM, then login with following credentials. Make sure it is attached to Host-only Adapter with name VirtualBox Host-Only Ethernet Adapter. It may help you.ĭouble click ‘ GNS3 IOU VM.ova’, it will open up in VirtualBox (if you have installed VMware please right click on the GNS3 IOU VM.ova file and change the ‘open with’ to Oracle VM VirtualBox).Ĭlick Import button, it will be imported to VirtualBox VM list. I have no privilege to provide it publicly, but I found a discussion related to it. iourc.txt file: Is the license of Cisco IOU image.Please don’t ask me! Google is your friend always. IOU image: IOU image is intended to use only for Cisco employees, distribution of IOU is strictly prohibited.It is a virtual box OVA file: Download from here GNS3 IOU VM.ova: Is the Virtual Unix platform to run IOU image.The process to connect Cisco IOU to GNS3-1.1 is a little bit hassle though, but I’m gonna give you simple explanation with step by step procedures : Tools Required
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