IP subnet calculator IP address और subnet mask (या CIDR notation) से network address, broadcast address, usable host range, और available hosts instantly calculate करता है — manual binary arithmetic की ज़रूरत नहीं।
IP Subnets Instantly Calculate करें
IP address और subnet mask enter करें — network, broadcast, host range देखें।
Subnetting Basics
हर IP address के दो parts: Network portion (कौन सा network) और Host portion (कौन सा device)। Subnet mask decide करता है कहां divide होता है।
Example: 192.168.1.100/24
| Property | Value |
|---|---|
| IP Address | 192.168.1.100 |
| Subnet Mask | 255.255.255.0 (/24) |
| Network Address | 192.168.1.0 |
| Broadcast Address | 192.168.1.255 |
| Usable Hosts | 254 |
पहले 24 bits network portion। बाकी 8 bits hosts के लिए = 2^8 - 2 = 254 usable addresses।
CIDR Notation समझें
| CIDR | Subnet Mask | Hosts | Use |
|---|---|---|---|
| /30 | 255.255.255.252 | 2 | Point-to-point link |
| /28 | 255.255.255.240 | 14 | Small office |
| /24 | 255.255.255.0 | 254 | Standard LAN |
| /20 | 255.255.240.0 | 4,094 | Large office / VPC |
| /16 | 255.255.0.0 | 65,534 | VPC / campus |
Usable hosts = 2^(32 - CIDR) - 2। /24: 2^8 - 2 = 254। /28: 2^4 - 2 = 14।
Cloud (AWS) के लिए Subnetting
| Subnet | CIDR | Purpose |
|---|---|---|
| VPC | 10.0.0.0/16 | Full virtual network |
| Public | 10.0.1.0/24 | Load balancers |
| Private | 10.0.10.0/24 | App servers |
| Database | 10.0.20.0/24 | RDS, ElastiCache |
हर AWS subnet में 5 IPs reserved। /24 subnet में 251 usable hosts (254 नहीं)।
CCNA Exam के लिए Subnetting
| CIDR | Mask (last octet) | Block Size | Hosts |
|---|---|---|---|
| /25 | 128 | 128 | 126 |
| /26 | 192 | 64 | 62 |
| /27 | 224 | 32 | 30 |
| /28 | 240 | 16 | 14 |
| /29 | 248 | 8 | 6 |
| /30 | 252 | 4 | 2 |
ये table CCNA exam के लिए memorize करें। Calculator से manual calculations verify करें।
How to Use the Tool (Step by Step)
- 1
IP Address Enter करें
जैसे 192.168.1.100 या 10.0.0.0।
- 2
Subnet Mask या CIDR डालें
255.255.255.0 या /24।
- 3
Results देखें
Network, broadcast address, host range, total hosts।
Frequently Asked Questions
Subnet mask क्या है?+−
IP address का network और host portion decide करता है। 255.255.255.0 (/24) = पहले 24 bits network, बाकी 8 bits hosts।
CIDR notation क्या है?+−
Slash + network bits — /24 means 24 network bits। Classful addressing (Class A/B/C) को replace करता है।
/24 में कितने hosts?+−
254 usable। 2^(32-24) - 2 = 254। Network और broadcast address minus।
Private IP ranges कौन सी हैं?+−
10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16। Internet पर route नहीं होतीं, internal networks और cloud VPCs में use।
क्या ये calculator free और private है?+−
हां। Browser में calculations। IP data server पर नहीं जाता।
IP Subnets Instantly Calculate करें
IP address और subnet mask enter करें — network, broadcast, host range देखें।
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