172.22.56.0/22
56对应的二进制是00111000,
16+6=22。所以第三个byte的后面2位bit可以使用。
The IP address and subnet mask you provided, 172.22.56.0/22, indicate a specific range of IP addresses within a private network. Here’s a detailed breakdown:
IP Address: 172.22.56.0
This is part of the private IP address range 172.16.0.0 - 172.31.255.255, which is reserved for private network use.
Subnet Mask: /22
The /22 indicates that the first 22 bits of the IP address are used for the network portion, and the remaining bits are used for host addresses.
Subnet Calculation:
-
Binary Representation:
- The subnet mask
/22in binary is:11111111.11111111.11111100.00000000 - This translates to a subnet mask of
255.255.252.0.
- The subnet mask
-
Network Address:
- The network address is the first address in the subnet:
172.22.56.0.
- The network address is the first address in the subnet:
-
Broadcast Address:
- The broadcast address is the last address in the subnet. To find it, we set all host bits to 1 within the subnet:
172.22.59.255.
- The broadcast address is the last address in the subnet. To find it, we set all host bits to 1 within the subnet:
-
Usable IP Range:
- The usable IP addresses are those between the network address and the broadcast address, excluding them.
- Therefore, the usable range is from
172.22.56.1to172.22.59.254.
-
Total Usable Hosts:
- There are 1024 total addresses in a
/22subnet (2^(32-22) = 2^10 = 1024). - Since 2 addresses are reserved (network and broadcast), there are 1022 usable IP addresses.
- There are 1024 total addresses in a
Summary
- Network Address:
172.22.56.0 - Broadcast Address:
172.22.59.255 - Usable IP Range:
172.22.56.1to172.22.59.254 - Total Usable Hosts: 1022
This subnet provides a large range of IP addresses, which is useful for accommodating a significant number of devices within a private network.
172.22.56.0/24
The IP address and subnet mask you provided, 172.22.56.0/24, specify a particular range of IP addresses within a private network. Here’s a detailed breakdown:
IP Address: 172.22.56.0
This is part of the private IP address range 172.16.0.0 - 172.31.255.255, which is reserved for private network use.
Subnet Mask: /24
The /24 indicates that the first 24 bits of the IP address are used for the network portion, and the remaining 8 bits are used for host addresses.
Subnet Calculation:
-
Binary Representation:
- The subnet mask
/24in binary is:11111111.11111111.11111111.00000000 - This translates to a subnet mask of
255.255.255.0.
- The subnet mask
-
Network Address:
- The network address is the first address in the subnet:
172.22.56.0.
- The network address is the first address in the subnet:
-
Broadcast Address:
- The broadcast address is the last address in the subnet. To find it, we set all host bits to 1 within the subnet:
172.22.56.255.
- The broadcast address is the last address in the subnet. To find it, we set all host bits to 1 within the subnet:
-
Usable IP Range:
- The usable IP addresses are those between the network address and the broadcast address, excluding them.
- Therefore, the usable range is from
172.22.56.1to172.22.56.254.
-
Total Usable Hosts:
- There are 256 total addresses in a
/24subnet (2^(32-24) = 2^8 = 256). - Since 2 addresses are reserved (network and broadcast), there are 254 usable IP addresses.
- There are 256 total addresses in a
Summary
- Network Address:
172.22.56.0 - Broadcast Address:
172.22.56.255 - Usable IP Range:
172.22.56.1to172.22.56.254 - Total Usable Hosts: 254
This /24 subnet provides a common subnet size that can accommodate up to 254 devices within a private network, making it a widely used subnet size for small to medium-sized networks.
标签：subnet,network,22,IP,56.0,address,172.22,addresses From： https://www.cnblogs.com/chucklu/p/18202051