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A netmask is a code used in computer networks to determine where data goes when received by a router. It hides a portion of an IP address and replaces it with other numbers. 32-bit netmasks are commonly used and generated by a netmask calculator. Different classes of netmasks are used for different sized networks and computer systems.
A netmask is a code of numbers used to correctly transfer messages between machines on the same subnet. It works in conjunction with a network’s router to determine where data goes when it is received.
Netmasks are used to identify which part of an IP address represents the network address and which part represents the machine address. A netmask is essentially a mathematical mask that hides a portion of an IP address and replaces it with other numbers. Netmasks are used in computer networks of all sizes.
Netmask is a commonly used term in the fields of computer technology and the Internet. The most common netmask is a 32-bit mask. 32-bit masks were created to be used for two main purposes; firstly, to administer Internet sites and divide an IP address into what are called subnetworks and secondly to specify the hosts available to the networks and determine where the data goes when it is received by the router. Network masks are essential for a successful Internet computer network.
A 32-bit netmask is a computer component capable of transferring data 32 bits at a time. There may also be 24-bit netmasks which are functional for smaller networks.
The netmask hides the network portion of an IP address so that only the host computer or machine remains visible to network users. This is done by replacing the numbers in the IP address with a string of 1s and 0s. A commonly used netmask is 255.255.255.0 because 255 is the decimal equivalent or sum of a string of 8 binary 1s. The 255 masks the network, and the 0 allows the host computer part of the IP address to remain visible to anyone accessing the network.
In a computer network the router is responsible for generating the netmask. The netmask is generated through the use of a netmask calculator. A netmask calculator is a script or program that calculates netmask numbers for the IP address. There are three classes of netmasks. They are labeled as class A, class B and class C. All netmask classes, A, B and C are commonly used in computer internet networks today. Different classes of netmasks generally have different lengths and are meant to be used with different sized networks and computer systems.
