- About This E-Book
- Title Page
- Copyright Page
- Contents at a Glance
- Contents
- About the Author
- About the Technical Reviewer
- Dedications
- Acknowledgments
- Reader Services
- Command Syntax Conventions
- Introduction
- Part I: Network Fundamentals
- Chapter 1. How to Subnet
- Chapter 2. VLSM
- Chapter 3. Route Summarization
- Chapter 4. Cables and Connections
- Chapter 5. The Command-Line Interface
- Shortcuts for Entering Commands
- Using the Key to Complete Commands
- Console Error Messages
- Using the Question Mark for Help
- enable Command
- exit Command
- disable Command
- logout Command
- Setup Mode
- Keyboard Help
- History Commands
- terminal Commands
- show Commands
- Using the Pipe Parameter (|) with the show Command
- Part II: LAN Switching Technologies
- Chapter 6. Configuring a Switch
- Help Commands
- Command Modes
- Verifying Commands
- Resetting Switch Configuration
- Setting Host Names
- Setting Passwords
- Setting IP Addresses and Default Gateways
- Setting Interface Descriptions
- The mdix auto Command
- Setting Duplex Operation
- Setting Operation Speed
- Managing the MAC Address Table
- Configuration Example
- Chapter 7. VLANs
- Chapter 8. VLAN Trunking Protocol and Inter-VLAN Communication
- Dynamic Trunking Protocol (DTP)
- Setting the VLAN Encapsulation Type
- VLAN Trunking Protocol (VTP)
- Verifying VTP
- Inter-VLAN Communication Using an External Router: Router-on-a-Stick
- Inter-VLAN Communication on a Multilayer Switch Through a Switch Virtual Interface
- Inter-VLAN Communication Tips
- Configuration Example: Inter-VLAN Communication
- Chapter 9. Spanning Tree Protocol
- Spanning Tree Protocol Definition
- Enabling Spanning Tree Protocol
- Configuring the Root Switch
- Configuring a Secondary Root Switch
- Configuring Port Priority
- Configuring the Path Cost
- Configuring the Switch Priority of a VLAN
- Configuring STP Timers
- Verifying STP
- Cisco STP Toolkit
- Changing the Spanning-Tree Mode
- Extended System ID
- Enabling Rapid Spanning Tree
- Troubleshooting Spanning Tree
- Configuration Example: PVST+
- Spanning-Tree Migration Example: PVST+ to Rapid-PVST+
- Chapter 10. EtherChannel
- Chapter 6. Configuring a Switch
- Part III: Routing Technologies: IPv4 and IPv6
- Chapter 11. Configuring a Cisco Router
- Router Modes
- Entering Global Configuration Mode
- Configuring a Router Name
- Configuring Passwords
- Password Encryption
- Interface Names
- Moving Between Interfaces
- Configuring a Serial Interface
- Configuring a Fast Ethernet Interface
- Configuring a Gigabit Ethernet Interface
- Assigning IPv6 Addresses to Interfaces
- Creating a Message-of-the-Day Banner
- Creating a Login Banner
- Setting the Clock Time Zone
- Mapping a Local Hostname to a Remote IP Address
- The no ip domain-lookup Command
- The logging synchronous Command
- The exec-timeout Command
- Saving Configurations
- Erasing Configurations
- show Commands
- EXEC Commands in Configuration Mode: The do Command
- Configuration Example: Basic Router Configuration
- Chapter 12. Static Routing
- Configuring an IPv4 Static Route on a Router
- Static Routes and Recursive Lookups
- The permanent Keyword (Optional)
- Floating Static Routes and Administrative Distance (Optional)
- Configuring an IPv4 Default Route on a Router
- Verifying IPv4 Static Routes
- Configuration Example: IPv4 Static Routes
- Static Routes in IPv6
- Floating Static Routes in IPv6
- Default Routes in IPv6
- Verifying and Troubleshooting IPv6
- Chapter 13. RIP Next Generation (RIPng)
- Chapter 14. EIGRP and EIGRPv6
- Configuring Enhanced Interior Gateway Routing Protocol (EIGRP) for IPv4
- EIGRP Router ID
- EIGRP Timers
- EIGRP Auto-Summarization for IPv4
- EIGRP Manual Summarization for IPv4
- Passive EIGRP Interfaces
- Equal-Cost Load Balancing: Maximum Paths
- Unequal-Cost Load Balancing: Variance
- Bandwidth Use
- Verifying EIGRP and EIGRPv6
- Troubleshooting EIGRP and EIGRPv6
- Configuration Example: EIGRP
- Configuration Example: EIGRPv6
- Chapter 15. OSPFv2 and OSPFv3
- OSPFv2 Versus OSPFv3
- Configuring OSPF
- Using Wildcard Masks with OSPF Areas
- Configuring Multiarea OSPF
- Multiarea OSPF Router Types
- Loopback Interfaces
- Router ID
- DR/BDR Elections
- Passive Interfaces
- Modifying Cost Metrics
- OSPF auto-cost reference-bandwidth
- Timers
- Propagating a Default Route
- Route Summarization
- IPv6 and OSPFv3
- Verifying OSPFv2 and OSPFv3 Configurations
- Troubleshooting OSPFv2 and OSPFv3
- Configuration Example: Single-Area OSPF
- Configuration Example: Multiarea OSPF
- Configuration Example: IPv6 and OSPFv3
- Chapter 11. Configuring a Cisco Router
- Part IV: WAN Technologies
- Chapter 16. Understanding Point-to-Point Protocols
- Configuring High-Level Data Link Control Encapsulation on a Serial Line
- Configuring Point-to-Point Protocol (PPP) on a Serial Line (Mandatory Commands)
- Configuring PPP on a Serial Line (Optional Commands): Compression
- Configuring PPP on a Serial Line (Optional Commands): Link Quality Monitoring
- Configuring PPP on a Serial Line (Optional Commands): Authentication
- Verifying and Troubleshooting a Serial Link/PPP Encapsulation
- Configuration Example: PPP with CHAP Authentication
- Configuring Multilink Point-to-Point Protocol
- Verifying and Troubleshooting MLPPP
- Configuring a DSL Connection Using Point-to-Point Protocol over Ethernet
- Step 1: Configure PPPoE (External Modem)
- Step 2: Configure the Dialer Interface
- Step 3: Define Interesting Traffic and Specify Default Routing
- Step 4: Configure NAT (Choose 1 Method Only)
- Step 4a: Configure NAT Using an ACL
- Step 4b: Configure NAT Using a Route Map
- Step 5: Configure DHCP Service
- Step 6: Apply NAT Programming
- Step 7: Verify a PPPoE Connection
- Chapter 17. External Border Gateway Protocol (eBGP)
- Chapter 18. Configuring Generic Routing Encapsulation (GRE) Tunnels
- Chapter 19. Quality of Service (QoS)
- Chapter 16. Understanding Point-to-Point Protocols
- Part V: Infrastructure Services
- Chapter 20. DHCP
- Chapter 21. First Hop Redundancy Protocols (FHRP): Hot Standby Router Protocol (HSRP)
- Chapter 22. Network Address Translation (NAT)
- Private IP Addresses: RFC 1918
- Configuring Dynamic Network Address Translation: One Private to One Public Address Translation
- Configuring PAT: Many Private to One Public Address Translation
- Configuring Static NAT: One Private to One Permanent Public Address Translation
- Verifying NAT and PAT Configurations
- Troubleshooting NAT and PAT Configurations
- Configuration Example: PAT
- Part VI: Infrastructure Security
- Chapter 23. Switch Port Security
- Chapter 24. Managing Traffic Using Access Control Lists (ACL)
- Access List Numbers
- Using Wildcard Masks
- ACL Keywords
- Creating Standard ACLs
- Applying Standard ACLs to an Interface
- Verifying ACLs
- Removing ACLs
- Creating Extended ACLs
- Applying Extended ACLs to an Interface
- The established Keyword
- The log Keyword
- Creating Named ACLs
- Using Sequence Numbers in Named ACLs
- Removing Specific Lines in Named ACLs Using Sequence Numbers
- Sequence Number Tips
- Including Comments About Entries in ACLs
- Restricting Virtual Terminal Access
- Tips for Configuring ACLs
- IPv6 ACLs
- Verifying IPv6 ACLs
- Configuration Examples: IPv4 ACLs
- Configuration Examples: IPv6 ACLs
- Chapter 25. Device Hardening
- Part VII: Infrastructure Management
- Chapter 26. Backing Up and Restoring Cisco IOS Software and Configurations
- Boot System Commands
- The Cisco IOS File System
- Viewing the Cisco IOS File System
- Commonly Used URL Prefixes for Cisco Network Devices
- Deciphering IOS Image Filenames
- Backing Up Configurations to a TFTP Server
- Restoring Configurations from a TFTP Server
- Backing Up the Cisco IOS Software to a TFTP Server
- Restoring/Upgrading the Cisco IOS Software from a TFTP Server
- Restoring the Cisco IOS Software from ROM Monitor Mode Using Xmodem
- Restoring the Cisco IOS Software Using the ROM Monitor Environmental Variables and tftpdnld Command
- Secure Copy
- Configuring a Secure Copy Server
- Verifying and Troubleshooting Secure Copy
- Configuration Example: Using Secure Copy
- Chapter 27. Password Recovery Procedures and the Configuration Register
- The Configuration Register
- A Visual Representation of the Configuration Register
- What the Bits Mean
- The Boot Field
- Console Terminal Baud Rate Settings
- Changing the Console Line Speed: CLI
- Changing the Console Line Speed: ROM Monitor Mode
- Password-Recovery Procedures for Cisco Routers
- Password Recovery for 2960 Series Switches
- Chapter 28. Cisco Discovery Protocol (CDP) and Link Layer Discovery Protocol (LLDP)
- Chapter 29. IOS Tools
- Chapter 30. Device Monitoring
- Device Monitoring
- Simple Network Management Protocol
- Configuring SNMP
- Securing SNMPv1 or SNMPv2
- Securing SNMPv3
- Verifying SNMP
- Configuration Backups
- Implementing Logging
- Configuring Syslog
- Syslog Message Format
- Syslog Severity Levels
- Syslog Message Example
- Configuring NetFlow
- Verifying NetFlow
- Network Time Protocol
- Network Time Protocol Configuration
- Verifying NTP
- Setting the Clock on a Router
- Using Time Stamps
- Chapter 31. Cisco IOS Licensing
- Chapter 32. Basic Troubleshooting
- Viewing the Routing Table
- Clearing the Routing Table
- Determining the Gateway of Last Resort
- Determining the Last Routing Update
- OSI Layer 3 Testing
- OSI Layer 7 Testing
- Interpreting the show interface Command
- Clearing Interface Counters
- Using CDP to Troubleshoot
- The traceroute Command
- The show controllers Command
- debug Commands
- Using Time Stamps
- Operating System IP Verification Commands
- The ip http server Command
- The netstat Command
- The arp Command
- Chapter 26. Backing Up and Restoring Cisco IOS Software and Configurations
- Part VIII: Appendixes
- Index
- Inside Front Cover
- Inside Back Cover
- What Do You Want to Do Today?
- Code Snippets
Contents at a Glance
CHAPTER 4 Cables and Connections
CHAPTER 5 The Command-Line Interface
Part II LAN Switching Technologies
CHAPTER 6 Configuring a Switch
CHAPTER 8 VLAN Trunking Protocol and Inter-VLAN Communication
CHAPTER 9 Spanning Tree Protocol
Part III Routing Technologies: IPv4 and IPv6
CHAPTER 11 Configuring a Cisco Router
CHAPTER 13 RIP Next Generation (RIPng)
CHAPTER 16 Understanding Point-to-Point Protocols
CHAPTER 17 External Border Gateway Protocol (eBGP)
CHAPTER 18 Configuring Generic Routing Encapsulation (GRE) Tunnels
CHAPTER 19 Quality of Service (QoS)
Part V Infrastructure Services
CHAPTER 21 First Hop Redundancy Protocols (FHRP): Hot Standby Router Protocol (HSRP)
CHAPTER 22 Network Address Translation (NAT)
Part VI Infrastructure Security
CHAPTER 23 Switch Port Security
CHAPTER 24 Managing Traffic Using Access Control Lists (ACL)
Part VII Infrastructure Management
CHAPTER 26 Backing Up and Restoring Cisco IOS Software and Configurations
CHAPTER 27 Password Recovery Procedures and the Configuration Register
CHAPTER 28 Cisco Discovery Protocol (CDP) and Link Layer Discovery Protocol (LLDP)
CHAPTER 31 Cisco IOS Licensing
CHAPTER 32 Basic Troubleshooting
APPENDIX A Binary/Hex/Decimal Conversion Chart
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