The document discusses subnetting IP addresses. It explains that subnetting provides benefits like smaller broadcast domains, low-level security, and increased address flexibility. Subnetting involves using host bits of an IP address as network bits, setting host bits of the network address to 0 and the broadcast address to 1. The document also notes how to establish the subnet mask address and apply it to classify IPs and calculate subnets through ANDing.

1. Module 10

2. 10.3.1 Classes of network IP addresses EG: An IP address 172.32.65.13 and a default subnet mask, the host belongs to the 172.32.0.0 network.

3. 10.3.2 Introduction to and reason for subnetting The benefits of Subnetting 1. smaller broadcast domains 2. low-level security provided 3. increased address flexibility EG: In a class C network a subnet mask of 255.255.255.224 will create 6 useable subnets each with 32 useable hosts.

4. 10.3.2 Introduction to and reason for subnetting Host bits are reassigned as network bits. Host bits of the network address are all equal to 0. Host bits of the broadcast address are all equal to 1.

5. 10.3.2 Introduction to and reason for subnetting

6. 10.3.3 Establishing the subnet mask address

7. 10.3.3 Establishing the subnet mask address

8. 10.3.3 Establishing the subnet mask address

9. 10.3.3 Establishing the subnet mask address

10. 10.3.4 Applying the subnet mask

11. 10.3.4 Applying the subnet mask

12. 10.3.5 Subnetting Class A and B networks 16 bits are available for Class B host IP addresses using the default subnet mask . Applying the subnet mask 255.255.255.0 to a Class B network will give 254 useable hosts and 254 useable subnets.

13. 10.3.5 Subnetting Class A and B networks

14. 10.3.5 Subnetting Class A and B networks

15. 10.3.5 Subnetting Class A and B networks

16. 10.3.5 Subnetting Class A and B networks

17. 10.3.6 Calculating the resident subnetwork through ANDing

18. 10.3.6 Calculating the resident subnetwork through ANDing