Computer Networking · Advanced level

Advanced level · Module 6: Capstone: Multi-Site Network · Lesson 2 of 5

Network Design

Design addressing, routing, wireless and security for all sites.

In this lesson you will

  • Produce a complete design
  • Justify design choices

Key concepts

addressing and VLANsrouting and WANwirelesssecurity zones

The lesson

Plan non-overlapping addressing for all sites, VLANs per site, OSPF and VPN between sites and internet failover at head office.

Design wireless for each site and security zones with firewall rules.

Justify each choice against requirements and budget.

Step by step

  1. Plan addressing.
  2. Design routing and WAN.
  3. Design wireless and security.
  4. Write justifications.

Practice activity

Complete the design document.

Expected result: A justified design covering all areas.

Check your understanding

  1. Why must site address ranges not overlap?

    Show answer

    For routing across VPNs and WAN links.

  2. What should each design choice be checked against?

    Show answer

    Requirements and budget.

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