Currently viewing the tag: "Dynamips"

INE released GNS3 config for v5 topology

By On April 28, 2010 · 2 Comments

A few days ago one friend on mine announced me that InternetworkExpert released a GNS3 configuration for their v5 topology.

When I had check INE’s website, I could not found the link to GNS3 topology. To be honest I was expecting INE to announce with big letters this new development, but I was quite silent (or I’m not reading carefully enough their website).

To fin GNS3 configuration, there is a small catch. You have to go to INE resources [...]

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How to emulate ASA in Ubuntu 9.10 and GNS3

By On April 28, 2010 · 2 Comments

Brainbump.net has an excellent and very complete how to emulate ASA using just the following components:

Ubuntu 9.10 – 32 bit Edition GNS3 v0.7 RC1 tgz Dynamips 0.2.8-RC2 binary for Linux x86 platforms Qemu-0.11.0 tar.gz Qemu-0.11.0 Patch ASA Binary Version 8.0(2) – (asa802-k8.bin)

How-to is divided in 3 video tutorial parts for easy understanding and start with the most basic installation on GNS3 under Ubuntu 9.10 and continue with the actually configuration on the emulation.
If you are interested in security or [...]

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GNS3: OSPF and EIGRP scenario

By On March 8, 2010 · Leave a Comment

A ready made GNS3 topology, including 3 interconnected routers in different domains (EIGRP and OSPF) like in the topology below.

Requirements:

- GNS3 or Dynamips install and functional
– Cisco IOS image for 3640 platform with Advanced IP Services

What’s included in the archive:

- routers initial configs
– network diagram
– GNS3 (or Dynamips) config file*
* Check the GNS3 config file for direction

What can you test with this scenario:

- ospf area range command
[...]

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How to integrate GNS3 with Virtual PC

By On March 23, 2009 · 12 Comments

In this article I want to show you how to extend your posibilities to test a network in GNS3. Sure, it’s simple sometime to use a Loobpack interface on one of your edge routers to simulate an external network, but sometime is useful to have something connected to the router port. Take as an example QoS marking and classification. If you want to mark something inbound, then you need a connection to the router port where you want to [...]

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GNS3: How-to save multiple topology configurations for good

By On December 19, 2008 · 4 Comments

GNS3 is an extremely useful tool if you are using Dynamips to emulate Cisco devices. It is a graphical environment in which even a newbie can do complex configuration by clicking and dragging routers, switches, connections into a topology that can be saved.

The problem that occurred to me in the past (and maybe to you also) is the following. Let’s assume that we create a configuration with routers named R0 and R1 and you save the topology config and also the routers config (“copy [...]

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Dynamips: How to save vlans after switch reload

By On November 11, 2008 · 3 Comments

Most of you already know that in Dynamips after a reload of a switch all the vlans and vtp configurations are gone. There is a way how to save the vlan and vtp configuration even in case of a reload of the switch and I will show you below how to do it. For switch emulator I used a Cisco 3640 IOS image with a NM-16ESW module to have Layer 2 port on the device.

Click below to see the movie and explanation:

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