This is a simple utility for converting the MaxMind GeoIP2 and GeoLite2 CSVs to different formats for representing IP addresses such as IP ranges or integer ranges.

Compiled binaries for Linux/x86_64, Windows, and Mac OS X can be downloaded from the GitHub releases page.

Required:

• -block-file=[FILENAME] - The name of the block CSV file to use as input.
• -output-file=[FILENAME] - The file name to the output CSV

In addition, at least one of these is required:

• -include-cidr - Include the network in CIDR format
• -include-range - Include the IP range of the network in string format
• -include-integer-range - Include the IP range of the network in integer format

This will include the network in CIDR notation in the network column as it is in the original CSV.

This adds network_start_ip and network_last_ip columns. These are string representations of the first and last IP address in the network.

This adds network_start_integer and network_last_integer columns. These are integer representations of the first and last IP address in the network.

This software is Copyright (c) 2014 by MaxMind, Inc.

This is free software, licensed under the Apache License, Version 2.0.