What is the 192.168.1.1 subnet mask?

192.168.1.1 subnet mask is "255.255.255.0". 192.168.1.1 is a Class C IP address. The default subnet mask of a Class C IP address is 255.255.255.0. The subnet mask is composed of a 32-bit binary number, which defines how many of the 32 bits of the IP address are used to identify the network, so the subnet mask cannot exist independently of the IP address.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

What is the 192.168.1.1 subnet mask?

192.168.1.1 is a Class C IP address. The default subnet mask of a Class C IP address is 255.255.255.0.

According to normal standards: 192.168.1.1 subnet mask is: 255.255.255.0. Generally, there is another way of expressing it: 192.168.1.1/24. The available IP range is: 192.168.1.1-192.168.1.254. The 24 here is the number of subnet mask digits, which is: 255.255.255.0, because three 255s are three segments. Binary 1, each segment is 8 bits, and three 255s are 24 bits. You can use a programmer's calculator to automatically calculate 255 (decimal) = 11111111 (binary).

Subnet mask introduction

Subnet mask (subnet mask) is also called network mask, address mask, Subnet mask, which is used to indicate which bits of an IP address identify the subnet where the host is located, and which bits identify the host's bit mask. The subnet mask cannot exist alone, it must be used in conjunction with the IP address.

The subnet mask is composed of a 32-bit binary number, which defines how many of the 32 bits of the IP address are used to identify the network, so the subnet mask cannot exist independently of the IP address.

The subnet mask is used to mask a part of the IP address to distinguish the network identification and the host identification, and to indicate whether the IP address is on a LAN or a WAN.

The subnet mask is the relationship between the network and the host. Its function is to divide an IP address into two parts: the network address and the host address.

Using subnets is to reduce the waste of IP. Because with the development of the Internet, more and more networks are created, some with hundreds of networks, and some with only a few. This wastes a lot of IP addresses, so subnets must be divided. Using subnets can improve the efficiency of network applications.

The method to determine whether two computers belong to the same network segment through the computer's subnet mask is to convert the computer's decimal IP address and subnet mask into binary form, and then perform binary AND ) calculation (all 1s result in 1, incomplete 1s result in 0), if the results are the same, then the two computers belong to the same network segment.

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