Chapter 3. Extending IP Addresses

Terms you'll need to understand:

  • CIDR

  • IETF

  • ip helper

  • ip subnet-zero

  • IPv6

  • Prefix length

  • Route summarization

  • Supernetting

  • Variable-length subnet masking (VLSM)

Techniques you'll need to master:

  • Reviewing the IP subnetting process

  • Understanding the formulas for calculating subnets and hosts

  • Implementing CIDR addressing or supernetting

  • Expressing various networks and subnets with their CIDR representations

  • Using VLSM to extend an IP address scheme

  • Deploying route summarization techniques

  • Configuring the ip helper command for controlled broadcasts

The Internet Engineering Task Force (IETF) is a governing body that consists of more than 80 groups working together to develop Internet standards. The Internet Protocol (IP) is the ...

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