BUT Réseaux et Télécommunications

Practice session

An enterprise network engineer needs to allocate subnets for four branch offices requiring 120, 60, 28, and 12 host addresses respectively from the parent block 172.16.10.0/23. Using Variable Length Subnet Masking (VLSM) to minimize unused address space, what is the valid subnet allocation and the remaining unallocated block?

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