What is Subnetting?

Subnetting is the practice of dividing a network into smaller, more manageable sub-networks (subnets). This allows for better organization, improved security, and more efficient use of IP addresses.

Benefits of Subnetting

Key Concepts

• Network Address: The first address in a subnet, used to identify the network
• Broadcast Address: The last address in a subnet, used for broadcast communications
• Subnet Mask: Defines which portion of an IP address is the network and which is the host
• Host Range: The usable IP addresses between network and broadcast addresses
• CIDR Notation: A compact way to represent IP networks (e.g., /24)