netwyman

What Does GNS3 Do? Compared to other network simulator programs (RouterSim, Boson NetSim), you can use Cisco IOS images more specifically with the back-end Hypervisor software through this network simulator program. Other software includes network devices such as Routers or Switches. As a result, you can run and use a real Cisco Router on your computer with GNS3. This simulator software uses IDLE-PC Value to show better performance of Cisco Routers or Switch IOS and shows you the optimal value with * character. You can set the Idle-PC value when adding a device to the program. Network Simulator Program Term GNS3 : → GUI (Graphical User Interface) Dynamips : → Emulator for IOS Dynagen : → Beginning Front End for Dynamips Pemu : → Cisco PIX Firewall Emulator Based on Qemu (Win)Pcap : → Packet Capture Library (Driver for Sniffer) Wireshark : → Network Monitoring / Listening to Network VPCS : → Adding a virtual computer. VMware VMS : VMware Virtual Machines

What is GNS3? GNS3 (Graphical Network Simulator) is an open source software that simulate complex networks while being as close as possible to the way real networks perform. All of this without having dedicated network hardware such as routers and switches. This software provides an intuitive graphical user interface to design and configure virtual networks, it runs on traditional PC hardware and may be used on multiple operating systems, including Windows, Linux, and MacOS X. In order to provide complete and accurate simulations, GNS3 actually uses the following emulators to run the very same operating systems as in real networks: Dynamips, the well known Cisco IOS emulator. VirtualBox, runs desktop and server operating systems as well as Juniper JunOS. Qemu, a generic open source machine emulator, it runs Cisco ASA, PIX and IPS Who can use it? GNS3 is an excellent alternative or complementary tool to real labs for network engineers, administrators and people s