| Subnetmask | ||||||||
| Decimal : | 0 | . | 0 | . | 0 | . | 0 | |
| Binary : | 00000000 | . | 00000000 | . | 00000000 | . | 00000000 | |
Wizard !
Prefix & Subnet Mask
| Prefix | Subnet Mask | |
| Uses the CIDR notation for IPv4 and IPv6. It counts the number of bits in the prefix and appends that number after a slash (/). | An IP address has two components network & host address. Subnetmask seperates an IP address into the network & host addresses |
NOTE: The Subnetmask is derived from the prefix value. On the dropdown below, you can select a prefix value and below the dropdown a subnetmask will be derived. The decimal values and the binary values of the subnetmask.
Select Prefix Value Below
IP Address
| Internet Protocol (IP) Address | Octets | |
| A set of rules governing the format of data sent over the internet or other network. IPv4, consists of 32 bits which make 4 octets seperated by a period. eg : 192.168.148.145 | In computing and network technology, an octet represents any 8-bit quantity. Octets range in mathematical value from 0 - 255. (NOTE: Octets and Bytes can be used interchangeably) |
NOTE: The inputs below only take mathematical value ranges equivalent of an Octet or Byte. (IPv4). seperated by a period (.).
NOTE: You can use TAB to move to a text-box
Enter All IP Address Fields Correctly Below To Proceed
| Octet | 1 | 2 | 3 | 4 | |||
| IP Address | . | . | . | ||||
| Octet : | 1 | 2 | 3 | 4 | |||
| Decimal : | 0 | . | 0 | . | 0 | . | 0 |
| Binary : | 00000000 | . | 00000000 | . | 00000000 | . | 00000000 |
Network Address
| Network Address | IP Address & Subnetmask | |
| Also known as the numerical network part of an IP address. This is used to distinguish a network that has its own hosts and addresses. eg : IP address 192.168.1.0 has network address 192.160.1.1 | The IP address you entered previously & Prefix that derived a Subnetmask are used to calculate the Network Address below. NB: IP address bit <> Subnetmask bit = network address bit; |
NOTE: The Network Address below has been derived from the Prefix/Subnetmask and IP address that you added on the previous panes.
| octet | 1 | 2 | 3 | 4 | Prefix | |||
| Binary | . | . | . | |||||
| Decimal | . | . | . |
| Block Size hosts | Hosts Size hosts | |
| The number of hosts a network can support. | Usable hosts in a network, we minus Network & Broadcast hosts, 2 - Network size. |
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| Select Network Prefix -> |
| Type-in IP octet value -> |
| Type-in IP octet value -> |
| Type-in IP octet value -> |
| Type-in IP octet value -> |
| IP ADDRESS | FINAL OUTPUT | 128 | 64 | 32 | 16 | 8 | 4 | 2 | 1 | |||||||
| OCTET | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | ||||||||
| 1 | -- | |||||||||||||||
| 2 | -- | |||||||||||||||
| 3 | -- | |||||||||||||||
| 4 | -- | |||||||||||||||
| SUBNET MASK | ||||||||||||||||
| 1 | -- | |||||||||||||||
| 2 | -- | |||||||||||||||
| 3 | -- | |||||||||||||||
| 4 | -- | |||||||||||||||
| NETWORK ADDRESS | ||||||||||||||||
| octet | 1 | 2 | 3 | 4 | ||||||||||||
| Binary | ||||||||||||||||
| DECIMAL | ||||||||||||||||
| Network Size | |
| Remaining |
| Subnet Name | ||
| Subnet Hosts | ||
| Subnet Count | -- | |
