Online Subnet Calculator - Step-by-Step Subnetting Guide
Subnetting is a process used in computer networks to divide a larger IP address range into smaller subnets. This improves IP address efficiency, reduces unnecessary traffic, and enhances network security.
📖 What is Subnetting and How Does It Work?
Enter the IP Address field with a value like 192.168.0.1 and the CIDR field with a number like 24.
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📌 Practical Subnetting Example
Suppose you have the IP 192.168.1.0 with the subnet mask 255.255.255.0.
This means:
- The network address is
192.168.1.0. - The broadcast address is
192.168.1.255. - Available host IPs range from
192.168.1.1to192.168.1.254.
🔍 Benefits of Subnetting
- Improves corporate network organization.
- Enhances security by isolating different departments.
- Reduces unnecessary network traffic.
🚀 How to Use the Subnet Calculator Step by Step
1. Enter the Data
Enter the IP Address field with a value like 192.168.0.1 and the CIDR field with a number like 24.
2. Click Calculate
Press the Calculate button to submit the data.
3. View the Results
The subnet results will appear right below the form, including:
- Network: The calculated network address.
- Broadcast: The last IP address in the subnet.
- Subnet Mask: The mask corresponding to the given CIDR.
- Host Range: From the first to the last available IP.
Detailed Subnetting Example
Consider the following input data:
- IP:
128.0.0.0 - Subnet Mask:
255.255.0.0
Results explained simply:
- Network:
128.0.0.0 - Broadcast:
128.0.255.255 - First Host:
128.0.0.1 - Last Host:
128.0.255.254 - Total Hosts:
65534 - Network Class:
B - IP Address Type:
Public
❓ Frequently Asked Questions
📌 What is subnetting?
Subnetting is the process of dividing a larger IP network into smaller subnets to optimize IP address usage.
📏 How to calculate the number of hosts in a subnet?
The number of hosts can be calculated using the formula: <code>2^(32 - CIDR) - 2</code>, excluding the network and broadcast IPs.
🛠️ Is the subnet calculator free?
Yes! Our subnetting calculator is 100% free and helps you calculate network IPs, broadcast addresses, and host ranges.
📚 Related Tutorials
- Understanding VLANs? Explore our VLAN Calculator.
- Need a sample CPF? Use our CPF Generator.