What are Variable Length Subnet Masks (VLSMs)?
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What are Variable Length Subnet Masks (VLSMs)?
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Variable Length Subnet Masks (VLSMs) allow administrators to divide a given IP address space into more than one subnet. It helps in efficient use of IP addressing. A classless routing protocol is required to deploy VLSM. Classful protocols such as RIP v1 do not support VLSM.
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