I take it you just came from the Initial Setup article, if you missed that I would highly suggest you read it first before continuing.
Gns3 Router Images Software Image AndThe most straightforward way that I have found is to download a pre-configured software image and load this on the GNS3 VM.This will primarily work as a NAT device between GNS3 and your real computer. So lets get started by navigating to the Routers node inside GNS3 and trying to drag the Internet device into GNS3. We will receive a popup to add a network appliance, if you do not recall how to do that please follow the link. ![]() The internet device that we just imported acts as a NAT device which will translate any IPs for network communications. This device also acts as a DHCP server which will issue out a DHCP IP to any device connected to it. This connection will work very similar to how many PPP connections work. Gns3 Router Images Password To AuthenticateHowever we are not using any username and password to authenticate, the DHCP server will just hand us an IP address and we will have network communications. Lets setup the interface on the Cisco router to work as a DHCP-Client. Please ensure that the cisco device is running first by either right-clicking it and selecting start, or by hitting the play button. I am using the show ip int br command to see which interfaces are currently running on the Cisco router. As you can see all ports are shut by default, I have noted that you will generally have to unshut all the ports manually after rebooting one of the Cisco iOSv images. Please do so by going into configuration mode by typing Config T or Configure Terminal and typing the interface you are going to plug the cable into. In my example this is GigabitEthernet03 or Gi03 so simply type Interface Gi03. We would first like to unshut or enable the port by typing no shut and pressing enter. If we look at the interface statuses again by doing a show ip int br we will see that the port is now no longer administratively down. If you are still in the interface configuration you can simply skip to the next paragraph, if not go back into configuration mode by typing config t. Now go into the interface conifugration mode by typing interface Gi03. When we type the show ip int br command we will also be able to see what this IP address is that was received from the DHCP server. As seen in the routers routing table when doing a show ip route. I hope this has been very informative and that you have learned something new. Involved with solution design, project planning and implementations on Enterprise and ISP networks. ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |