How do you calculate net mask?
The first and last addresses are reserved: the first to identify the network and the last to be used as the broadcast address.
- Find host range.
- Convert to binary.
- Calculate the total number of hosts per subnet.
- Calculate the number of subnets.
- Verify the total number of subnets.
What is subnet and IP calculator?
The subnet calculator is a handy tool for finding the number of possible subnets for any given network address block. You can choose the combination of subnets and number of hosts per subnet that suits your network and get the host address range and broadcast address for any given subnet mask.
How do you calculate IP subnet?
To calculate the IP Address Subnet you need to perform a bit-wise AND operation (1+1=1, 1+0 or 0+1 =0, 0+0=0) on the host IP address and subnet mask. The result is the subnet address in which the host is situated.
What is 26 subnet mask?
A subnet mask of 255.255. 255.192 is 11111111.11111111. 11111111.11000000 in binary, or 26 ones, hence /26 .
What is the subnet mask for 32?
IPv6 Subnet Calculator
Prefix size | Network mask | Usable hosts per subnet |
---|---|---|
/29 | 255.255.255.248 | 6 |
/30 | 255.255.255.252 | 2 |
/31 | 255.255.255.254 | 0 |
/32 | 255.255.255.255 | 0 |
What is subnet mask 255?
The 255 address (in binary notation, a host address of all ones) is used to broadcast a message to every host on a network. Just remember that the first and last address in any network or subnet can’t be assigned to any individual host. You should now be able to give IP addresses to 254 hosts.
What is a 32-bit subnet mask?
A 32-bit subnet mask defines a network with only one IP address. In mixed routing mode, you can only configure a 32-bit subnet mask for a physical external interface.
What is the best subnet mask to use?
Subnet mask | Mask length | Mask octet |
---|---|---|
255.255.255.254 | 31 | 4 |
255.255.255.252 | 30 | 4 |
255.255.255.248 | 29 | 4 |
255.255.255.240 | 28 | 4 |