About mapcidr-cidr
mapcidr is a CIDR processing tool from ProjectDiscovery for command-line workflows involving IP ranges. It supports expansion, aggregation, slicing, and shuffling across IPv4 and IPv6.
Key features
- 01Expand CIDRs into IP lists
- 02Aggregate IP lists into CIDRs
- 03Slice by host count or CIDR size
- 04Count IP addresses
- 05Filter IP ranges
Use cases
- 01Expand a CIDR range for port scanning
- 02Aggregate IPs from scan results
- 03Slice a large range to distribute scans
- 04Filter a specified IP range
Install
Copy the command and run it in a terminal.
$
npx skills add https:/ / github.com/ wgpsec/ aboutsecurity --skill mapcidr-cidrAfter installing, type/mapcidr-cidrin Claude Code to confirm it loaded.
Details
From the project READMEmapcidr CIDR 网段处理方法论
mapcidr 是 ProjectDiscovery 出品的 CIDR 处理工具。核心优势:展开/聚合/切片/打乱 + IPv4/IPv6 双栈 + 管道友好。
项目地址:https://github.com/projectdiscovery/mapcidr
基本操作
# CIDR 展开为 IP 列表
echo 192.168.1.0/24 | mapcidr
# 统计 IP 数量
echo 10.0.0.0/16 | mapcidr -count
# IP 列表聚合为 CIDR
cat ips.txt | mapcidr -aggregate
# 打乱 IP 顺序(避免顺序扫描触发告警)
echo 192.168.1.0/24 | mapcidr -si
# 跳过基址和广播地址
echo 192.168.1.0/24 | mapcidr -skip-base -skip-broadcast
网段切片
# 按主机数切片(每片 256 个 IP)
echo 10.0.0.0/16 | mapcidr -sbh 256
# 按 CIDR 大小切片(切成 /24)
echo 10.0.0.0/16 | mapcidr -sbc 24
# 切片后分发扫描
echo 10.0.0.0/16 | mapcidr -sbc 24 | \
while read cidr; do naabu -host "$cidr" -p 80,443 -silent; done
管道集成
# CIDR 展开 → 端口扫描
echo 10.0.0.0/24 | mapcidr -si | naabu -p 80,443 -silent
# IP 去重聚合
cat scan_results.txt | mapcidr -aggregate
# 过滤 IP 范围
echo 10.0.0.0/8 | mapcidr -fi 10.0.1.0/24
Comments
Markdown supported