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Module 10
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.
10.3.2 Introduction to and reason for subnetting
The benefits of Subnetting1. 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.
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.
10.3.2 Introduction to and reason for subnetting
10.3.3 Establishing the subnet mask address
10.3.3 Establishing the subnet mask address
10.3.3 Establishing the subnet mask address
10.3.3 Establishing the subnet mask address
10.3.4 Applying the subnet mask
10.3.4 Applying the subnet mask
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.
10.3.5 Subnetting Class A and B networks
10.3.5 Subnetting Class A and B networks
10.3.5 Subnetting Class A and B networks
10.3.5 Subnetting Class A and B networks
10.3.6 Calculating the resident subnetwork through ANDing
10.3.6 Calculating the resident subnetwork through ANDing
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