Brief Contents -- Contents in Detail -- Foreword -- Acknowledgments -- Introduction -- Who This Book Is For -- What's in This Book -- My Approach -- Book Overview -- Chapter 1: Introducing GNS3 -- Why Use GNS3? -- Emulated Hardware -- Simulated Operating Systems -- Scalability with the GNS3 Server -- Virtual Connectivity -- Open Source Integration -- The Dynamips Hypervisor -- QEMU and VirtualBox -- A Few Limitations -- Some Assembly Required -- Limited Emulation -- Hamstrung Network Performance -- Final Thoughts -- Chapter 2: Installing a Basic GNS3 System -- General Requirements -- Installing on Microsoft Windows -- Installing on OS X -- Installing on Ubuntu Linux -- Installing GNS3 from Packages -- Installing GNS3 from Source Code -- GNS3 Appliances -- A Few Pros and Cons -- GNS3 WorkBench -- Installing GNS3 WorkBench -- Final Thoughts -- Chapter 3: Configuration -- Acquiring an IOS Image -- Setting Up Your First IOS Router -- Configuring Dynamips -- Adding IOS Images to GNS3 -- Setting a Manual Idle-PC Value -- Final Thoughts -- Chapter 4: Creating and Managing Projects -- Project Management Overview -- Terminology -- Screen Layout -- Using the GNS3 Toolbar -- First Toolbar Group -- Second Toolbar Group -- Third Toolbar Group -- Fourth Toolbar Group -- Using the Devices Toolbar -- Creating Your First Project -- Working with Routers -- Creating Links Between Your Routers -- Configuring Virtual Hardware -- Starting, Stopping, and Pausing Routers -- Logging On to Routers -- Ethernet Switch Nodes -- Changing Symbols and Organizing Your Devices -- Final Thoughts -- Chapter 5: Integrating Hosts and Using Wireshark -- Virtual PC Simulator -- Installing VPCS -- VPCS Commands -- VPCS IP Addressing -- VirtualBox -- Installing on Windows -- Installing on OS X -- Installing on Linux -- Importing Appliances -- VirtualBox Preferences.

VirtualBox Virtual Machine Settings -- Using VirtualBox Hosts in a Project -- Linking VirtualBox Host Nodes to Other Devices -- Simple VirtualBox Project Using a Linux Virtual Machine -- Wireshark -- Installing on Windows -- Installing on OS X -- Installing on Linux -- Capturing Packets in GNS3 -- Final Thoughts -- Chapter 6: Juniper Olive and vSRX Firefly -- Installing QEMU on Windows and OS X -- Installing QEMU on Linux -- Introducing Juniper -- Installing Juniper -- Process Overview -- Acquiring FreeBSD -- Acquiring Juniper Olive Software -- Creating a Juniper Olive CD Image File -- Creating an ISO in Windows -- Creating an ISO in OS X -- Creating an ISO in Linux -- Installing and Configuring FreeBSD Using QEMU -- Preparing Your Build Directory -- Installing a Junos-Friendly FreeBSD System -- Installing the Juniper Olive Package in FreeBSD -- Getting Your Olive Up and Running -- Backing Up Juniper Olive -- Configuring a Juniper Router in GNS3 -- Adding the Juniper Virtual Machine to GNS3 -- Adding Ethernet Interfaces -- Testing a Juniper Router -- Running Juniper vSRX Firefly -- Creating a Firefly Virtual Machine with VirtualBox -- Giving Your Virtual Machine More Processors -- Adding vSRX Firefly to GNS3 -- Creating a Project with a Zone-Based Firewall -- Final Thoughts -- Chapter 7: Device Nodes, Live Switches, and the Internet -- Built-in Device Nodes -- Node Configurator -- Ethernet Hub -- EtherSwitch Router -- Frame Relay Switch -- Simple Frame Relay Hub and Spoke Configuration -- Creating a Frame Relay Switch Using IOS -- ATM Switch -- Cloud Nodes -- Connecting GNS3 Devices to Physical Hardware -- Dynamips Permissions -- Preparing Your PC for a Bridge -- Using a Loopback Adapter on Windows -- TUN/TAP Drivers on OS X -- TUN/TAP Drivers on Ubuntu Linux -- Connecting to Live Switches -- Configuring a Standard 802.1Q Trunk.

Creating the Elusive Breakout Switch -- Optional Breakout Switch Configuration -- Using Multiple Adapters in Your PC -- Connecting GNS3 Devices to the Internet -- Configuring Windows -- Configuring Unix-Based Systems -- Creating a Simple Network -- Final Thoughts -- Chapter 8: Cisco ASA, IDS/IPS, and IOS-XRv -- Cisco Configuration Professional -- Project Configuration -- CCP Installation -- Running CCP -- Cisco ASA Firewall -- Acquiring an Image -- Prepping the ASA Image for GNS3 -- Configuring GNS3 for ASA -- Testing an ASA in GNS3 -- ASDM Installation -- Cisco IDS/IPS -- Acquiring an IDS/IPS Image -- Creating a QEMU-Ready IDS/IPS System -- Hijacking the Hardware -- Testing IDS/IPS (or Patience Is a Virtue) -- Configuring GNS3 for IDS/IPS -- Verifying IDS/IPS in GNS3 -- Cisco IOS-XRv -- Configuring GNS3 for IOS-XRv -- Creating a Simple IOS-XR Project -- Final Thoughts -- Chapter 9: Cisco IOS on Unix and NX-OSv -- Cisco IOU -- What IOU Means to GNS3 -- Switching, Switching, and More Switching! -- IOU Images -- Things to Know Before Installing IOU -- Setting Up IOU on a Linux PC -- Installing IOU -- Creating a License File -- Configuring GNS3 -- Using the GNS3 IOU Virtual Machine on Windows and OS X -- Importing the GNS3 IOU Virtual Machine into VirtualBox -- Uploading IOU Image Files -- Configuring GNS3 for IOU -- IOU in Action -- NX-OSv -- Importing NX-OSv into VirtualBox -- Configuring GNS3 for NX-OSv -- NX-OSv in Action -- Final Thoughts -- Chapter 10: Cool Things to Do on a Rainy Day -- Managing Devices from an Access Server -- Installing the Virtual Interface -- Preparing the GNS3 Server -- Creating a Virtual Access Server in GNS3 -- Configuring a Cisco IP Hostname Table -- Seeing the Virtual Access Server in Action -- Deploying Configurations to Real Hardware -- Exporting GNS3 Configurations to Cisco Routers.

Importing Cisco Router Configurations into GNS3 -- Copying GNS3 Projects Between Platforms -- IOS-Only Projects -- Projects with IOU Devices -- Projects with VirtualBox Devices -- Exploring the GNS3 Console -- Creating Projects Using Multiple PCs -- A Dynamips Client/Server Setup -- Creating a GNS3 Uberlab -- Nerdy Labs for Fun and Profit -- Preparing for Cisco Exams -- Securing Your Networks -- Practicing Real-World Scenarios -- Final Thoughts -- Appendix A: Help! I've Fallen and I Can't Get Up -- Identifying the Problem -- Sudden Problems -- Stopping Dynamips Crashes -- When IOS Images Fail to Load -- Resolving IOS Memory Errors -- Resolving Network IO Errors -- Correcting Console Problems -- Feature Problems -- Configuration Issues -- Using Unsupported IOS Images -- The Nuclear Option -- Overburdened Hardware -- Resolving Port Number Conflicts -- Troubleshooting an ASA -- Conserving Resources -- Select Devices Carefully -- Optimize Idle-PC Values -- Backing Up Your Projects -- Welcome to the Jungle -- Final Thoughts -- Appendix B: Cisco Hardware Compatible with GNS3 -- Supported Cisco Hardware -- IOS Compatibility -- Appendix C: NM-16ESW and IOU L2 Limitations -- Unsupported NM-16ESW Features -- Unsupported Features in Cisco IOU L2 Images -- Glossary -- Index -- Resources -- About the Author.