Description:
Subnet/CIDR operation utility
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Type: Formula
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Tracked Since: Dec 28, 2025
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Links:
Homepage |
@projectdisco |
formulae.brew.sh
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Category: Networking
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Tags:
networking
cidr
subnet
security
cli
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Install:
brew install mapcidr
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About:
Mapcidr is a utility designed to transform and manipulate IP subnets and CIDR ranges. It enables security professionals and network engineers to efficiently convert lists of IPs into CIDR blocks, split networks, and perform various calculations. This tool streamlines network asset management and reconnaissance workflows by providing fast, programmatic access to subnet operations.
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Key Features:
- Converts IP lists into consolidated CIDR blocks
- Splits large networks into smaller subnets
- Performs fast CIDR and IP range calculations
- Supports input from STDIN for pipeline integration
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Use Cases:
- Consolidating scattered IP addresses into CIDR ranges for firewall rules
- Splitting large network ranges for subnet scanning and enumeration
- Filtering and processing IP lists during network reconnaissance
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Alternatives:
-
netaddr
– Python library offering comprehensive IP address manipulation, but requires scripting.
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ipcalc
– Standard CLI tool for network address calculation, generally less focused on bulk processing.
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