• Subnetting (sub + network) is the practice of dividing one large IP network into smaller subnets. This lets you match address counts to real needs and avoid unused IPs.

    40 % Complete: you’re making great progress

    Unlock the rest of this lesson

    If you’d like to continue your CCNA journey, simply create your free account.

    Access all CCNA lessons

    Practice with hands-on labs

    Train with Practice exams and Quizzes

    Progress tracking in your dashboard

    Made by network engineers - CCNP certified

    learners globally