ipfx

A comprehensive command-line tool for IP address calculations and network analysis.
This tool supports both IPv4 and IPv6 addresses and provides detailed network information including:

• Network address and broadcast address calculation
• Host count and subnet mask information
• CIDR notation and Cisco notation formats
• Private/global address identification
• Reverse DNS pointer records
• Interactive and command-line modes

Features:
- Support for both IPv4 and IPv6 networks
- Multiple output formats (CIDR, Cisco, Ubuntu notation)
- Interactive mode for continuous calculations
- Command-line mode for scripting and automation
- Lightweight and fast execution
- No external dependencies required

Usage examples:
- ipfx 192.168.1.1/24
- ipfx 2001:db8::1/64
- ipfx (interactive mode)