Chapter 1 · Threats, Attacks, and Vulnerabilities

Network Segmentation Lab

Replace this template with your full lab documentation—objectives, topology, commands, screenshots, and findings.

Goals

  • Create isolated VLANs for prod, dev, and mgmt.
  • Apply inter-VLAN firewall rules with least privilege.
  • Verify isolation with ping/traceroute and port scans.

Environment

Fill in hypervisor, virtual switches, router/firewall (e.g., pfSense), and monitoring tools used.

Steps

  1. Document interface/VLAN plan.
  2. Configure segments and DHCP scopes.
  3. Add firewall rules; test allowed vs blocked flows.
  4. Capture results (nmap/pcap) and screenshots.

Findings

Summarize what worked, what broke, and next improvements.