This lesson introduces IP addressing and subnetting.

Objectives and Skills

Objectives and skills for the IP addressing portion of Network+ certification include:^[1]

• Given a scenario, implement and configure the appropriate addressing schema
  • IPv6
    • Auto-configuration
      • EUI 64
    • DHCP6
    • Link local
    • Address structure
    • Address compression
    • Tunneling 6to4, 4to6
      • Teredo, miredo
  • IPv4
    • Address structure
    • Subnetting
    • APIPA
    • Classful A, B, C, D
    • Classless
  • Private vs public
  • NAT/PAT
  • Multicast
  • Unicast
  • Broadcast
  • Broadcast domains vs collision domains

Readings

1. Wikipedia: IP address
2. Wikipedia: IPv6
3. Wikipedia: Classful network
4. Wikipedia: CIDR notation
5. Wikipedia: Classless Inter-Domain Routing
6. Wikipedia: Subnetwork
7. Wikipedia: IPv4 subnetting reference
8. Wikipedia: Private network
9. Wikipedia: Network address translation
10. Wikipedia: Multicast
11. Wikipedia: Link-local address

Multimedia

1. YouTube: Binary Math - CompTIA Network+ N10-006 - 1.8
2. YouTube: An Overview of IPv6 - CompTIA Network+ N10-006 - 1.8
3. YouTube: IPv6 Address Configuration - CompTIA Network+ N10-006 - 1.8
4. YouTube: IPv6 Interoperability - CompTIA Network+ N10-006 - 1.8
5. YouTube: IPv4 Classes - CompTIA Network+ N10-006 - 1.8
6. YouTube: Classless Inter-Domain Routing - CompTIA Network+ N10-006 - 1.8
7. YouTube: IPv4 Addresses and Subnetting - CompTIA Network+ N10-006 - 1.8
8. YouTube: APIPA - CompTIA Network+ N10-006 - 1.8
9. YouTube: Unicast, Multicast, and Broadcast - CompTIA Network+ N10-006 - 1.8
10. YouTube: Broadcast Domains and Collision Domains - CompTIA Network+ N10-006 - 1.8
11. YouTube: Professor Messer - Seven Second Subnetting

Activities

1. Review IP address settings for your local network:
   • Windows:
     1. Review Microsoft: How do I fix network adapter problems? and Microsoft: Change TCP/IP Settings. Review network settings for your system.
     2. Review ipconfig. Complete the activities to display IP address information, all information, and release and renew a dynamic IP address.
   • OS X:
     1. Review Apple: About Network Utility. Use Network Utility to review network settings for your system.
     2. Review MacWorld: Configuring Your Mac's Network Settings Use System Preferences / Network to review network settings for your system. Use the Advanced button and TCP/IP settings to renew your DHCP lease.
     3. Review Wikipedia: ifconfig. Use ifconfig to review network settings for your system.
   • Linux:
     1. Review YoLinux: Network GUI Configuration Tools. Use Network Configuration or System Settings / Networking to review network settings for your system.
     2. Review Wikipedia: ifconfig. Use ifconfig to review network settings for your system. Review CyberCiti: Linux Force DHCP Client to Renew IP Address. Use dhclient to release and renew a dynamic IP address.
2. Identify public IP address information:
   • Perform an Internet search for "what's my ip". Use an available website to determine your public IP address.
   • Use a Regional Internet Registry to search the Whois database for IP address information.
   • Perform an Internet search for "ip location". Use an available website to determine the location of your public IP address.
3. Validate your IPv6 knowledge:
   • Review Jacob Salmela: Earning IPv6 Certification from Hurricane Electric and the walkthroughs for Newbie and Explorer.
   • Visit Hurricane Electric: IPv6 Certifications. Register for free IPv6 certification testing and complete the Newbie and Explorer certifications.
4. Practice subnetting:
   • Review Understanding IP Addressing: Everything You Ever Wanted To Know and complete the exercises in the appendix.
   • Generate practice subnetting questions using this Subnet Calculator.
   • Review EasySubnetting.com subnetting resources.
   • Play the Cisco Subnet Game.

Lesson Summary

Key Terms

See Also

References