Cover -- Copyright -- Credits -- About the Author -- About the Reviewers -- www.PacktPub.com -- Table of Contents -- Preface -- Chapter 1: Clearing the First Hurdle -- Pre-installation tasks and prerequisites -- Understanding the GNS3 family of applications -- Memory and CPU -- Router Image files -- Downloading GNS3 -- The installation process -- Installing on Windows -- Installing on OS X (Macintosh) -- Installing on Linux Mint -- Post-installation tasks -- The Setup Wizard -- Summary -- Chapter 2: Creating Your First GNS3 Simulation -- Jumping in the deep end - a basic two router configuration -- Conceptualizing a project -- The topology.net file -- The configs directory -- The working directory -- Opening a project -- Getting to know the GUI -- Tips for managing your workspace -- Tips for managing your routers -- Using VPCS (Virtual PC Simulator) -- Capturing packets with Wireshark -- Avoiding the 100 percent CPU utilization problem -- Coming to grips with Idle-PC values -- Introducing GNS3 generic switches -- Ethernet switch -- Frame-relay and ATM switches -- Summary -- Chapter 3: Enhancing GNS3 -- Connecting to physical interfaces -- Mini-project - connecting your GNS3 router to your LAN -- Why can't my host computer ping my router? -- The Microsoft Loopback adapter -- The Linux NIO TAP adapter -- The OS X TUN/TAP adapter -- Adding VLAN support -- Generic Ethernet switch -- EtherSwitch router -- Terminal tips -- Using a different terminal application -- Using the AUX port -- Troubleshooting a device console -- Fine tuning the topology - adding graphics and text -- Accessing GNS3 running on a remote machine -- Accessing a device console remotely -- Linking GNS3 topologies on different hosts -- Summary -- Chapter 4: Unleashing Other Emulators -- The Qemu emulator -- Adding Qemu support -- Linux -- Qemu Preferences -- Microcore Linux using Qemu.

Adding ASA firewalls -- Adding Juniper routers (Junos) -- The VirtualBox emulator -- Adding VirtualBox Support -- A Windows PC on Oracle VirtualBox -- A Linux PC on VirtualBox -- Adding a Vyatta router using VirtualBox -- Summary -- Chapter 5: The Cisco Connection -- Cisco routers - emulated hardware -- Cisco IOS -- Platform -- Feature set -- Memory location and compression format -- Train number -- Maintenance release -- Train identifier -- RAM requirements and the feature navigator -- Summary -- Chapter 6: Peeking under the GNS3 Hood -- Understanding the topology.net file -- Say hello to the hypervisor -- The GNS3 orchestra -- UDP tunnel concept -- Conducting Qemu and VirtualBox -- Debugging using the GNS3 management console -- Summary -- Chapter 7: Tips for Teachers, Troubleshooters, and Team Leaders -- Packaging your projects -- Adding Instructions -- Managing Snapshots -- Using remote hypervisors -- Remote hypervisor tutorial -- Preparing the remote servers -- Preparing the host computer -- Load balancing across multiple hypervisors -- Using your local GNS3 host as a hypervisor -- Building the topology -- Choosing the right platform -- Using VPCS with remote hypervisors -- Running GNS3 in a virtual machine -- The GNS3 WorkBench solution -- GNS3 Limitations -- Ethernet interfaces always up -- Cisco router support -- Host PC communication in a virtual machine environment -- Getting more help -- Official websites for all the GNS3 suite of programs -- Other helpful online resources -- Summary -- Index.