KivTools

IPv4 CIDR Set Analyzer & Route Summarizer LOCAL ONLY

Normalize IPv4 CIDR blocks, flag duplicates or covered routes, and produce the smallest safe aggregate list from the addresses you paste.

Everything in this tool is processed in this browser.
IPv4 CIDR listOne IPv4 address or CIDR block per line; an address without a prefix is treated as /32.
Local route mathValidate policy before publishingIPv4 only

This performs address arithmetic only. It does not query BGP, DNS, firewalls or cloud route tables.

Input blocks
No valid IPv4 blocks to display yet.
Aggregate blocks
No aggregate routes to display yet.
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