Unit 4 · Addressing Network Devices

4.7Hands-on lab: Addressing and subnetting

Do these tasks on your own computer or in the lab using free software. Write down what you see at each step: your notes are useful evidence for assessments and for revision.

  1. Record the MAC address, IPv4 address, mask, gateway and DNS of your computer (ipconfig /all or ip a).
  2. Run arp -a and match entries to devices on your LAN.
  3. Subnet 172.16.0.0/16 into 8 equal subnets; list network, range and broadcast of each.
  4. In Packet Tracer, configure two subnets joined by a router and prove connectivity with ping and tracert.
  5. Convert five IPv4 addresses to binary by hand and check with a calculator.

Check your work with the subnet calculator, the VLSM planner and the binary converter, but only after you have worked each answer out by hand.