MicroNugget: How to Add the Mac Host Computer to a GNS3 Topology
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In this video, Keith Barker covers adding the host Macintosh to a GNS3 topology using a logical “tap0” interface. When you’ve got a live Mac as the host computer for GNS3, there are a number of different ways to integrate it into the topology — here’s Keith’s favorite.
There are better ways than others for integrating a machine running OSX into the GNS3 topology that it itself is running. The number of solutions stem from the central challenge presented by the number of different Mac machines that might be running GNS3. For example, MacBook Air doesn’t have a physical ethernet adapter — it’s wireless only. Meanwhile, Macbook Pros have both. For Keith, the best method is the most consistent one: a file called TunTap you can download and then only have to run once.After downloading and running TunTap, just add the GNS3 cloud representing the new interface, then configure the IP on the interface. To see how to do that all first-hand, watch as Keith runs you through the logical “tap0” interface that’s the key to adding your host Mac to its own GNS3 topology.
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