All tools · page 183

Divides one prefix into N equal child subnets with ranges and broadcasts.

Converts start-end address ranges into the minimal covering CIDR list.

Allocates subnets largest-first from a base block against a host-count table.

Flags overlapping and duplicate blocks in a pasted CIDR list.

Renders a /8-to-/32 table of masks, wildcards, block sizes, and host counts.

Prints block-size deltas per prefix so last-octet math stays mental.

Generates in-addr.arpa or ip6.arpa records for a given prefix.

Splits a /24 reverse zone into delegated smaller slices with NS rows.

Verifies a gateway and host IPs sit inside one subnet under one mask.

Finds the smallest prefix that satisfies a required usable-host count.

Replans prefixes after applying a growth percentage to host requirements.

Assigns fe80::/64 segments per VLAN and interface in a tidy table.

Assigns private blocks to sites and departments with a spare-block ledger.

Subdivides 100.64.0.0/10 into per-site translation pools with port notes.

Sizes NAT pools from concurrent users, ports per session, and timeout math.

Computes port-per-user ratios from pool size and flow arrival rates.

Finds unassigned holes between allocations in a pasted IPAM export.

Groups subnets into named security zones ready for policy design.

Plans RFC 3021 /31 links for router point-to-point addressing.

Shows an address and mask as aligned binary octets with network bits highlighted.

Lists network, first and last usable, broadcast, and count for any prefix.

Classifies pasted addresses as private, loopback, link-local, multicast, or global.

Tables special-use IPv4 and IPv6 ranges with RFC citations.

Converts masks into hexadecimal notation for legacy equipment.