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DHCP Scope Calculator

Calculate DHCP pool size, exclusions, and lease parameters

Network for DHCP scope (e.g. 192.168.1.0/24).
IPs for routers, servers, printers excluded from DHCP.
Duration of each DHCP lease.
Max simultaneous DHCP clients expected.

Scope Details

Recommendations

References: RFC 2131 (DHCP), RFC 2132 (Options). T1=50% lease, T2=87.5% per spec.