Network Configuration Notes

Subnet Mask

• Default Mask: 255.255.255.0
• Explanation:
  • This is a common subnet mask used in many local area networks (LANs).
  • It corresponds to a subnet with up to 254 usable IP addresses (256 total, minus 2 for network and broadcast).
  • Divides the IP address into network and host portions.
  • Often used with Class C IP addresses (192.168.0.0 to 192.168.255.255).

Key Points

• Subnetting: Process of dividing a network into smaller subnetworks
• Network Identifier: First part of the IP address, determined by the subnet mask
• Host Identifier: Remaining part of the IP address, used for individual hosts on the network

Example

• IP Address: 192.168.1.1
• Subnet Mask: 255.255.255.0
• Network Address: 192.168.1.0
• Broadcast Address: 192.168.1.255