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Plan a private subnet
Carve a CIDR into subnets, wrap host ranges in their smallest CIDR block, add an IPv6 ULA prefix, and assign service ports.
Step 1 of 4
Carve the address space
Feed a CIDR to the subnet calculator to read the network and broadcast addresses, the netmask, and how many usable hosts each subnet holds. Remember the network and broadcast addresses are reserved, so a /24 gives 254 hosts, not 256.
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