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What is a subnet mask? A subnet mask is a 32-bit binary number used in modern network addressing schemes to differentiate between a network's location and the specific location of a host or device on that network. Subnet Mask is a 32-bit number that is used to partition IP addresses into a network ID and a host ID (network and host bits). Subnet masks are used by TCP/IP services and applications to determine whether a given IP address on an internetwork is a local network address or a remote network address. Learn what subnet mask is, how to use it, and why it is important for IP addressing. Find out the methods, formulas, and examples of subnetting and subnet masking. Learn what a subnet mask is, how it works, and its role in IP networks. Explore uses, benefits, and tools for managing subnet masks effectively.
