pjhtech ToolsEnter an IPv4 address with its prefix, such as 10.42.7.93/26. Use Network and Netmask for the subnet definition, and choose ordinary LAN host addresses from Usable range.
Example: 10.42.7.93/26 falls inside 10.42.7.64/26. The final address is 10.42.7.127, leaving 10.42.7.65–10.42.7.126 for 62 ordinary hosts.
| Network | 10.42.7.64/26 |
|---|---|
| Netmask | 255.255.255.192 |
| Wildcard | 0.0.0.63 |
| Total addresses | 64 |
| Usable addresses | 62 |
| First usable | 10.42.7.65 |
| Last usable | 10.42.7.126 |
| Broadcast | 10.42.7.127 |
Enter four decimal octets followed by /0 through /32. Surrounding whitespace is accepted; ambiguous leading-zero octets are rejected. /31 uses the RFC 3021 point-to-point interpretation with two endpoints. /32 describes one host. A /0 count is arithmetic, not a claim that every address is assignable. Check the special-address reference before using a range.