![]() ![]() The configuration and IP address of the network interface on the emulated router can be verified by the following command R1# show ip interface brief *Mar 1 00:02:17.115: %SYS-5-CONFIG_I: Configured from console by console To verify the connection I will use simple topology and connect a router emulated within the GNS to my home router and dynamically acquire IP address via DHCP protocol.Īt the router use the following commands to acquire IP address via DHCP protocol R1(config)# interface ethernet 0/0 When you are done click OK to finish the configuration of the cloud device. Note: The network device should show up in the middle box of the window.ħ. From the drop down list chose the network interface you are going to connect to the GNS cloud device You may need to use a loopback interface instead.ĥ. The purpose is to assign existing network interface on your computer, that is also configured in Windows. It may be slightly different in other versions of The Windows. ![]() Chose the first tab on the left hand side NIO Ethernet. Click on the C1, or other cloud, to access it’s settings.Ĥ. Right click on the cloud icon and chose Configureģ. Place the cloud icon in the topology, by dragging into the topology workspace.Ģ. The cloud device icon in the GNS can be found either under Browse End Devices or Browse All Devices.ġ. To connect any interface in the GNS to a real network or device via your computer you will need to explore the cloud device in the GNS.Ġ. Steps to make the GNS use of a physical network interface via loopback interface Click the check box Allow other network users to connect through this computer’s Internet connection and click OK Right click on your physical interface (in my case its name is 999) and chose Propertiesħ. On the left-hand side of the windows click Change adapter settings 5. And then click Network and Sharing Center 4. Open windows Control Panel, which ever method you like the most.Ģ. The configuration of loopback interface to access the Internet.ġ. Now, after finishing the wizard, you need to reboot your PC. After wizard finishes it’s job just click Finish to close the wizard.ĩ. The loopback interface driver will be installed.Ĩ. From the Manufacturer box chose Microsoft and from the Network Adapter box chose Microsoft KM-TEST Loopback Adapter and click Next.ħ. Scroll down the list of available device types, chose Network adapters and click Next.ĥ. Chose Install the hardware that I manually select from a list (Advanced) option and click Next.Ĥ. You can do it from the command line, using hdwwizcommand. First you need to start ‘ Add Hardware Wizard‘. How to install loopback interface on Windows 8.ġ. In order to have separate network interface you will need to install logical interface also known as a loopback interface. ![]() You could attach GNS to the physical network interface, however it could mess up your communication with the Internet.Having working Internet connection, while you are trying to learn something, is very useful. To access a real network, GNS3 needs to have a network interface that it can be directly connected to via the ‘Cloud device’. To be able to connect your computer directly to the emulation inside the GNS3 world you will need to have a loopback interface configured on your computer. I am aiming to explain the concepts using only the GNS or PacketTracer, however sometimes it is interesting to be able to connect the GNS to part of a network that exists outside the emulation or even is a physical one. This blog is about learning for Cisco examination with the GNS3 emulator.
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