You should now see a screen similar to the following:ġ2. Right-click on each cloud, choose Configure and then select the NIO UDP tab. Now the proof of the pudding is in the eating so what I'm going to do is connect a very simple network in GNS3 (I know this seems obvious but KEEP VPCS RUNNING):ġ1. Make a note of the LPORT and RPORT settings (from the show command) for each PC you have configured as you will need them for later. Keep adding as many PCs as you need and configure the IP addresses as desired (limited to 9).ġ0. To change the virtual PC you are configuring simply enter the number of the virtual PC you wish to configure.ĩ. To change the IP address and default gateway to better suit your needs the following syntax prevails: I don't know who Mike Muuss is by the way, lol.ħ. Type in the show command to view a printout of your virtual PCs. To run VPCS type vpcs.exe from the command line and you ought to see a screenshot similar to below:ĥ. To activate this, just hold down the Shift key when you right-click on a folder, and you should see the Open Command Window Here menu item.Ĥ. Windows Vista includes this ability right out of the box, it's just not immediately obvious, because it's hidden behind a shortcut key. Once installed right-click the VPCS folder and select Open Command Prompt Here and a command prompt window will open in that directory. For example, I may have cd C:\Program Files\GNS3\vpcs-0.14gĪn even easier way to do this in Windows XP is to download the "Open Command Prompt Here" Power Toy from here. Now go back to the command prompt you opened and type "cd" (again, without the quotes) followed by the path to your VPCS folder. If you cannot see the address bar go to View->Toolbars and click Address Bar. Now using Windows Explorer go to the folder where VPCS is located and copy the location from the address bar. If you are unsure of how to do this, go to Start->Run and type in "cmd" (without the quotes) and hit Enter. Open up a command prompt and change the directory to where you have the VPCS folder. Go to the GNS3/Dynamips directory and rename the cygwin1.dll file to and copy the cygwin1.dll file in the VPCS directory to this directory.ģ. Download the zip file from here and extract it to wherever desired.Ģ. In my traditional style I shall run you through a step-by-step guide of configuring VPCS and show you an example of how I set up a basic topology to test the functionality.ġ. It is called VPCS and can be downloaded from here. I know that a lot of people tried putting loopback adapters at either end of a topology but when pinging between multiple loopback adapters the traffic stayed on the PC and would not pass through the routers configured in GNS3.īy jove though, a clever man, mirnshi I believe his name is, has devised a great little program that can simluate up to 9 hosts within GNS3. It worked a treat but had one major flaw, namely, CPU overhead. You would also need to assign an IP address to the interface connected to the router performing routing, or a switch which in turn is connected to a router doing the routing. For some time now I have been asked how I simulate hosts in GNS3 and my stock answer was to configure a router as a host by issuing the "no ip routing" command and setting a default gateway with the "ip default-gateway" command.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |