Ethical Hacking, Testing and Networking Training Videos

Subnetting- Subnetting is a way of splitting a TCP/IP network into smaller networks. When you subnet your network, you are splitting the network into separate but interconnected network. With this, network traffic will decrease but user can create connection with other subnet.

Advantages of subnetting are:-

· Reduce network traffic

· Better network performance

· Simplified management

There are two types of Subnetting :-

1. VLSM(Variable Length Subnet Mask)- It allows an organization to use more than one subnet mask within the same network address. It can be used to maximize addressing efficiency.

2. FLSM(Fixed Length Subnet Mask)- Under FLSM scheme, all subnets on a network must have the same subnet mask. If subnetmask 255.255.255.224 is applied, the first three octets of the address and the first three bits of last octet indicate the subnet address while last five bits of the octet indicates host address.