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Chapter 6: Network Layer

  • 6.0 Network Layer
    • 6.0.1 Introduction
      • 6.0.1.1 Introduction
      • 6.0.1.2 Activity – The Road Less Traveled…
  • 6.1 Network Layer Protocols
    • 6.1.1 Network Layer in Communication
      • 6.1.1.1 The Network Layer
      • 6.1.1.2 Network Layer Protocols
    • 6.1.2 Characteristics of the IP protocol
      • 6.1.2.1 Characteristics of IP
      • 6.1.2.2 IP – Connectionless
      • 6.1.2.3 IP – Best Effort Delivery
      • 6.1.2.4 IP – Media Independent
      • 6.1.2.5 Encapsulating IP
      • 6.1.2.6 Activity - IP Characteristics
    • 6.1.3 IPv4 Packet
      • 6.1.3.1 IPv4 Packet Header
      • 6.1.3.2 IPv4 Header Fields
      • 6.1.3.3 Sample IPv4 Headers
      • 6.1.3.4 Activity - IPv4 Header Fields
    • 6.1.4 IPv6 Packet
      • 6.1.4.1 Limitations of IPv4
      • 6.1.4.2 Introducing IPv6
      • 6.1.4.3 Encapsulating IPv6
      • 6.1.4.4 IPv6 Packet Header
      • 6.1.4.5 Sample IPv6 Header
      • 6.1.4.6 Activity - IPv6 Header Fields
  • 6.2 Routing
    • 6.2.1 How a Host Routes
      • 6.2.1.1 Host Forwarding Decision
      • 6.2.1.2 Default Gateway
      • 6.2.1.3 IPv4 Host Routing Table
      • 6.2.1.4 IPv4 Host Routing Entries
      • 6.2.1.5 Sample IPv4 Host Routing Table
      • 6.2.1.6 Sample IPv6 Host Routing Table
      • 6.2.1.7 Activity - Identify Elements of a Host Routing Table Entry
    • 6.2.2 Router Routing Tables
      • 6.2.2.1 Router Packet Forwarding Decision
      • 6.2.2.2 IPv4 Router Routing Table
      • 6.2.2.3 Directly Connected Routing Table Entries
      • 6.2.2.4 Remote Network Routing Table Entries
      • 6.2.2.5 Next-Hop Address
      • 6.2.2.6 Sample Router IPv4 Routing Table
      • 6.2.2.7 Activity - Identify Elements of a Router Routing Table Entry
      • 6.2.2.8 Lab - View Host Routing Tables
  • 6.3 Routers
    • 6.3.1 Anatomy of a Router
      • 6.3.1.1 A Router is a Computer
      • 6.3.1.2 Router CPU and OS
      • 6.3.1.3 Router Memory
      • 6.3.1.4 Inside a Router
      • 6.3.1.5 Router Backplane
      • 6.3.1.6 Connecting to a Router
      • 6.3.1.7 LAN and WAN Interfaces
      • 6.3.1.8 Activity - Identify Router Components
      • 6.3.1.9 Lab - Exploring Router Physical Characteristics
      • 6.3.1.10 Packet Tracer - Exploring Internetworking Devices
    • 6.3.2 Router Boot-up
      • 6.3.2.1 Cisco IOS
      • 6.3.2.2 Bootset Files
      • 6.3.2.3 Router Bootup Process
      • 6.3.2.4 Show Version Output
      • 6.3.2.5 Video Demonstration - The Router Boot Process
      • 6.3.2.6 Activity - The Router Boot Process
  • 6.4 Configuring a Cisco Router
    • 6.4.1 Configure Initial Settings
      • 6.4.1.1 Router Configuration Steps
      • 6.4.1.2 Packet Tracer - Configure Initial Router Settings
    • 6.4.2 Configure Interfaces
      • 6.4.2.1 Configure LAN Interfaces
      • 6.4.2.2 Verify Interface Configuration
    • 6.4.3 Configuring the Default Gateway
      • 6.4.3.1 Default Gateway on a Host
      • 6.4.3.2 Default Gateway on a Switch
      • 6.4.3.3 Packet Tracer - Connect a Router to a LAN
      • 6.4.3.4 Packet Tracer - Troubleshooting Default Gateway Issues
      • 6.4.3.5 Lab - Initializing and Reloading a Router and Switch
  • 6.5 Summary
    • 6.5.1 Summary
      • 6.5.1.1 Class Activity – Can You Read This Map?
      • 6.5.1.2 Packet Tracer - Skills Integration Challenge
      • 6.5.1.3 Summary
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