Network Design
Subnet Calculator — Advanced
Carve a parent network into 6 named supernets — CAMPUS, DATA CENTER, EDGE, CORE/TRANSIT, OOB, WAN — for hierarchical network design. Same outputs as the simple calculator, multiplied across all six.
Enter a parent of
/29 or larger to carve into 6 named supernets.Enter a parent network above to see six supernets carved out.
Nine rows per export — the parent network plus six named supernets and two reserved-for-expansion slots, in physical address order. Each name auto-fills Network Name, with a blank row between rows.
CIDR Reference
Click any row to load 0.0.0.0/N as the parent network — useful for seeing what supernet sizes a given parent prefix produces.
| Parent CIDR | Supernet CIDR (×8) | Supernet Size | Usable Hosts |
|---|
Network & Security Architect
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