PrefixCalc

Calculate matched subnets from a single prefix-list element or optimize a larger prefix-list with overlap, shadow, range, and text-scraping analysis for both IPv4 and IPv6.

IPv4 + IPv6 ge / le / eq Range summarization Aggressive + explicit modes Permit / deny ordering

Input

Enter one prefix element for calculator mode, or multiple entries for optimizer mode. The permit keyword is optional.

Aggressive optimization

Results

Output includes the optimized or calculated prefix-list plus additional findings.

Run an analysis to view the calculated prefixes, optimizer output, overlaps, and notes.