Focus: Firewalls & Router Configuration

Learning Intention

We are learning the role of firewalls in protecting networks and common router configuration settings.

Success Criteria

• I can define a firewall and describe how it filters traffic.
• I can name at least one setting you’d configure on a home router.

📝 Seminar Study Notes – “The Gatekeepers”

• Firewall: Filters traffic (allow/deny rules). Works with ACLs.
• NAT (Network Address Translation): Converts private IPs to a single public IP.
• Port Forwarding: Directs specific traffic to a device (e.g., gaming console).
• Router GUI Settings: SSID (Wi-Fi name), password, DHCP pool, firewall toggle.
• Access Control List (ACL): List of rules controlling traffic flow.

Warm-Up Practice Question

• Which feature allows multiple devices to share one public IP?
  • a) DHCP
  • b) NAT
  • c) Port Forwarding
  • d) VPN
• Answer: b) NAT

Seminar Activity