Focus: IP Addressing & Subnetting Basics
Learning Intention
We are learning how IP addresses are structured and how subnets divide networks into logical groups.
Success Criteria
- I can identify the network portion and host portion of an IPv4 address.
- I can explain the difference between static and dynamic (DHCP) addresses.
📝 Seminar Study Notes – “Inside an IP Address”
- IPv4: 32 bits, 4 octets (e.g., 192.168.1.10).
- Subnet Mask: Defines network vs host (255.255.255.0 = /24).
- Private Ranges:
- 10.0.0.0 – 10.255.255.255
- 172.16.0.0 – 172.31.255.255
- 192.168.0.0 – 192.168.255.255
- DHCP: Assigns IPs automatically.
- Static: Manually assigned (servers, printers, routers).
Warm-Up Practice Question
- Which of these is a private IP address?
- a) 8.8.8.8
- b) 172.20.10.5
- c) 200.1.1.1
- d) 150.10.5.5
- Answer: b) 172.20.10.5
Seminar Activity