ipconflict

Check if two or more network subnets are overlapping.

Install

pip install ipconflict

Quick Start

• ipconflict 10.0.0.0/22 10.0.1.0/24
• ipconflict 10.0.0.0/22 10.0.1.1-10.0.1.5
• ipconflict 172.16.0.0/22 172.16.1.0/24 172.16.3.0/27

Print overlapping IP addresses

• ipconflict -p 10.0.0.0/24 10.0.0.100-10.0.0.105

Subnets from file

• ipconflict -f /path/to/subnets

Subnets from stdin

• echo "10.0.1.0/24 10.0.0.0/22" | ipconflict -i

Subnets from everywhere

• echo "10.0.0.0/16" | ipconflict -i -f /path/to/subnets 192.168.0.0/24 172.25.1.17

Subnet Definition

A subnet can be specified in several ways:

• CIDR notation 192.168.0.0/24
• Single IP address 10.0.1.2
• IP range 10.0.0.5-10.0.0.20

This tool works both with IPv4 and IPv6.

Exit Status

• 0, one or more conflicts found
• 1, no conflict found
• 2, aborted or invalid input