Now we are logged into each of the hosts and routers in the network.
The login for each virtual machine we are using in this example is tc. Hit the Enter key on each terminal to get a prompt. Arrange the terminals on your desktop according to your preference. Control → Console connect to all devicesĪ new terminal window will appear for each virtual machine. You can start all consoles at the same time by clicking on the Console connect to all devices command in the GNS3 Control menu. You can start a console on any individual node by right-clicking on the node and selecting Console from the drop-down menu or by clicking on a node and then clicking on the Console button at the top of the GNS3 user interface (it looks like a small terminal screen). Now, we log into each node using its console window. All the nodes listed in the Topology Summary panel will turn green. All the links will in network diagram turn green.
Gns3 routers software#
Now that we have created the devices and links, we can start the routers and hosts in the network and configure them so we can perform some very basic tests on the networking software on each device.Ĭlick the Start All Devices green arrow button on the GNS3 user interface. Connect port eth0 on each device to the appropriate network element: Quagga-1, Host-1, and Host-2 all connect to switch SW1 Quagga-2 connects directly to Host-3. Now create the network topology shown in the screen capture below. In the Topology Summary panel, double-click on the node you are interested in to see which ports are already connected. If you are wondering which ports are already used, you can check in the Topology Summary panel in the lower right of the GNS3 window.
In this case, we will connect the two routers so that the link connects port eth7 on each router. Then click on the second link and select the port. To add a link between two nodes, click on the first node, then select the port in the pop-up menu. The default link type, GigaEthernet, will work correctly. GNS3 only supports Ethernet links between VirtualBox virtual machines so we do not need to select the link type. This indicates we need to click the button again to exit the link-add mode when we are done adding links. The button will change to show a red stop sign with a white “X”. Repeat this process for each device in the planned topology until we have three hosts, two routers, and one switch arranged as shown below.Ĭlick on the Add a Link button to set up links between the nodes in the network. Now a router symbol with the label Quagga1 appears in GNS3. Choose the guest, Quagga1, which has a disk image with Tiny Core Linux, Quagga, and Openvswitch installed. After you drop it, a dialogue box appears asking which VirtualBox guest will run on this node. Use it to creat the switch SW1.įirst, click on the router-virtualbox device and drag it to the middle panel in the GNS3 window. This is a basic switch provided by GNS3.Use this for the host computers Host-1, Host-2, and Host-3.Use this for the routers Quagga-1 and Quagga-2. This is the custom node we created in an earlier post.Use the following devices to create the nodes. To build the topology, click on the Browse all Devices button to show the Devices panel. In this case, we will have five virtual machines prepared: three hosts and two routers.Īfter starting GNS3, add three hosts, two routers, one switch, and some ethernet links to create the topology shown below. Let’s use the virtual machines we already prepared in the the previous post about setting up GNS3 with virtual Linux routers. When using VirtualBox, we must prepare a VirtualBox virtual machine for each node we will use. We are using VirtualBox to run the Linux virtual machines in our simulated network. In this post, we will investigate how well GNS3 works when we use it strictly as an open-source network simulator, without using Cisco or Juniper routers in the simulation. GNS3 can be used to simulate a network composed exclusively of open-source routers, switches, servers, and hosts.
0 kommentar(er)
