What is GNS3 ?

GNS3 is a graphical network simulator that allows you to design complex network topologies and to launch simulations on them.

To allow complete simulations, GNS3 is strongly linked with :

• Dynamips, an IOS emulator which allows users to run IOS binary images from Cisco Systems.
• Dynagen, a text-based front-end for Dynamips.
• Pemu, a PIX emulator.

GNS3 is a excellent complementary tool to real labs for administrators of Cisco networks or people wanting to pass their CCNA, CCNP, CCIP or CCIE certifications.

It can also be used to experiment features of Cisco IOS or to check configurations that need to be deployed later on real routers. This project is an open source product that may be used on multiple platforms, including Windows, Linux, and MacOS X.

Features overview

• Designing high quality complex network topologies.
• Emulating Cisco routers and PIX firewalls.
• Simulating simple Ethernet, ATM and Frame Relay switches.
• Load and save in Dynagen’s INI-like format.
• Image export (JPEG, PNG, BMP and XPM).
  

Important notice: users must provide their own Cisco IOS to use GNS3.

PassGuide Cisco Exams Questions & Training Materials

1. Free GNS3 Graphical Network Simulator
2. Free [offer] A Very Basic Gns3 Setup And Sdm Setup Video Clip, SDM basic setup over router and Gns3 for new users
3. Free GNS3 0.6 release
4. Free Detailed Guide to the use of dynamips + dynagen
5. Free Release: GNS3 Beta.0.6 Win32 UNOFFICIAL Release By GNS3-Labs
6. Free Cisco IOS Pagent And Callgen For Dynamips And GNS3
7. Free GNS3-0.3-beta_documentation.pdf
8. Free gns3 0.4 beta down
9. Free Gns3 Documentation
10. Free GNS3 0.5 released
11. Free Dynaslax gns3 Downloads
12. Free Cisco-Voice GNS3 CME Startup Video and Kit