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Chapter 4: Routing Concepts

  • 4.0 Routing Concepts
    • 4.0.1 Introduction
      • 4.0.1.1 Introduction
      • 4.0.1.2 Activity - Do We Really Need a Map?
  • 4.1 Initial Configuration of a Router
    • 4.1.1 Functions of a Router
      • 4.1.1.1 Characteristics of a Network
      • 4.1.1.2 Why Routing?
      • 4.1.1.3 Routers Are Computers
      • 4.1.1.4 Routers Interconnect Networks
      • 4.1.1.5 Routers Choose Best Paths
      • 4.1.1.6 Packet Forwarding Mechanisms
      • 4.1.1.7 Activity - Identify Router Components
      • 4.1.1.8 Packet Tracer - Using Traceroute to Discover the Network
      • 4.1.1.9 Lab - Mapping the Internet
    • 4.1.2 Connect Devices
      • 4.1.2.1 Connect to a Network
      • 4.1.2.2 Default Gateways
      • 4.1.2.3 Document Network Addressing
      • 4.1.2.4 Enable IP on a Host
      • 4.1.2.5 Device LEDs
      • 4.1.2.6 Console Access
      • 4.1.2.7 Enable IP on a Switch
      • 4.1.2.8 Activity - Document an Addressing Scheme
      • 4.1.2.9 Packet Tracer - Documenting the Network
    • 4.1.3 Basic Settings on a Router
      • 4.1.3.1 Configure Basic Router Settings
      • 4.1.3.2 Configure an IPv4 Router Interface
      • 4.1.3.3 Configure an IPv6 Router Interface
      • 4.1.3.4 Configure an IPv4 Loopback Interface
      • 4.1.3.5 Packet Tracer - Configuring IPv4 and IPv6 Interfaces
    • 4.1.4 Verify Connectivity of Directly Connected Networks
      • 4.1.4.1 Verify Interface Settings
      • 4.1.4.2 Verify IPv6 Interface Settings
      • 4.1.4.3 Filter Show Command Output
      • 4.1.4.4 Command History Feature
      • 4.1.4.5 Packet Tracer - Configuring and Verifying a Small Network
      • 4.1.4.6 Lab - Configuring Basic Router Settings with IOS CLI
      • 4.1.4.7 Lab - Configuring Basic Router Settings with CCP
  • 4.2 Routing Decisions
    • 4.2.1 Switching Packets Between Networks
      • 4.2.1.1 Router Switching Function
      • 4.2.1.2 Send a Packet
      • 4.2.1.3 Forward to the Next Hop
      • 4.2.1.4 Packet Routing
      • 4.2.1.5 Reach the Destination
      • 4.2.1.6 Activity - Match Layer 2 and Layer 3 Addressing
    • 4.2.2 Path Determination
      • 4.2.2.1 Routing Decisions
      • 4.2.2.2 Best Path
      • 4.2.2.3 Load Balancing
      • 4.2.2.4 Administrative Distance
      • 4.2.2.5 Activity - Order the Steps in the Packet Forwarding Process
  • 4.3 Router Operation
    • 4.3.1 Analyze the Routing Table
      • 4.3.1.1 The Routing Table
      • 4.3.1.2 Routing Table Sources
      • 4.3.1.3 Remote Network Routing Entries
      • 4.3.1.4 Activity - Interpret the Content of a Routing Table Entry
    • 4.3.2 Directly Connected Routes
      • 4.3.2.1 Directly Connected Interfaces
      • 4.3.2.2 Directly Connected Routing table Entries
      • 4.3.2.3 Directly Connected Examples
      • 4.3.2.4 Directly Connected IPv6 Example
      • 4.3.2.5 Packet Tracer - Investigating Directly Connected Routes
    • 4.3.3 Statically Learned Routes
      • 4.3.3.1 Static Routes
      • 4.3.3.2 Static Route Examples
      • 4.3.3.3 Static IPv6 Route Examples
    • 4.3.4 Dynamic Routing Protocols
      • 4.3.4.1 Dynamic Routing
      • 4.3.4.2 IPv4 Routing Protocols
      • 4.3.4.3 IPv4 Dynamic Routing Examples
      • 4.3.4.4 IPv6 Routing Protocols
      • 4.3.4.5 IPv6 Dynamic Routing Examples
  • 4.4 Summary
    • 4.4.1 Summary
      • 4.4.1.1 Activity - We Really Could Use a Map!
      • 4.4.1.2 Summary
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