January 2008


This tutorial will demonstrate how to install GNS3 Router Emulation Software on a Linux platform. I used Ubuntu 7.10 because I use it as my home OS and the most user friendly.

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This tutorial will help you build a basic Internet lab using GNS3 as a WAN simulator. It  will be referenced by future tutorials such as how to configure GRE/IPSec VPNs, how to configure a DMVPN (Dynamic Multipoint VPN) and QOS.

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In a previous tutorial, I showed you how to use a windows loopback interface to connect to your dynagen/dynamips lab.

This tutorial is the same (in theory). Only this time we are using gns3 instead of dynagen. Before running the gns3 loopback tutorial, you may want to go through the microsoft loopback tutorial first.

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