Quick Answer: What Is Subnet Mask Example?

What is Subnet IP?

A subnetwork or subnet is a logical subdivision of an IP network.

The practice of dividing a network into two or more networks is called subnetting.

Computers that belong to a subnet are addressed with an identical most-significant bit-group in their IP addresses.

Addresses in the range 198.51.

100.0 to 198.51..

How do I calculate subnet mask?

Total number of subnets: Using the subnet mask 255.255. 255.248, number value 248 (11111000) indicates that 5 bits are used to identify the subnet. To find the total number of subnets available simply raise 2 to the power of 5 (2^5) and you will find that the result is 32 subnets.

How do you create a subnet?

ProcedureClick the Network tab.In the Subnets tab, click Create.In the Create Subnet dialog box, specify subnet details, such as the name, subnet IP address or subnet mask, range of IP addresses, gateway address, and broadcast domain. … Click Create.

What is a 16 subnet?

It saves you from typing, or pronouncing, the whole mask. For example, /8 means 255.0. 0.0, /16 is 255.255. 0.0, and /24 is 255.255. … 255.0 mask on that network.”

What do I put for subnet mask?

A subnet mask can be converted into binary form that consists of 0s and 1s. All zeros are placed on the right while all 1s are placed on the left. An example of subnet IP address is as follow: a 255.255. 255.252 subnet mask has a binary mask that is 11111111.11111111.

What is the most common subnet mask?

Most home networks use the default subnet mask of 255.255. 255.0. However, an office network may be configured with a different subnet mask such as 255.255. 255.192, which limits the number of IP addresses to 64.

What is IP address and subnet mask?

A subnet mask is a 32- or 128-bit number that segments an existing IP address in a TCP/IP network. … Subnet mask divides the IP address into a network address and host address, hence to identify which part of IP address is reserved for the network and which part is available for host use.

Why do we need subnet mask?

9 Answers. We need a subnet mask for IPv4 addresses because the address doesn’t give any information on the network size. Class sizes are not the network sizes. … Also to be clear the purpose of the subnet mask is to determine which hosts are on the local network and which are outside of the network.

What is Vlsm with example?

VLSM occurs when an internetwork uses more than one mask for different subnets of a single Class A, B, or C network. Figure 22-1 shows an example of VLSM used in Class A network 10.0. … 255.0) on the LAN subnets. All subnets are of Class A network 10.0.

How do you subnetting IP addresses with examples?

For 1st Subnet-Subnet Address = First IP Address = 192.16.0.00000000 = 172.16.0.0.First Host ID = 192.16.0.00000001 = 192.16.0.1.Last Host ID = 192.16.0.01111110 = 192.16.0.126.Broadcast Address = Last IP Address = 192.16.0.01111111 = 172.16.0.127.

What is custom subnet mask?

The custom subnet mask, also called a variable length subnet mask, is used to identify the bits used for a network address versus the bits used for a host address. ■ Custom subnet masks are used when subnetting or supernetting.

How do I find my IP subnet mask?

In the Windows search fields, type cmd, to open command prompt.Press Enter.Type ipconfig/all press Enter.Find your network settings.Your PC’s IP address and your network Subnet Mask and Gateway will be listed.

How do you explain subnetting?

Subnetting is the practice of dividing a network into two or more smaller networks. It increases routing efficiency, enhances the security of the network and reduces the size of the broadcast domain.