ipmap

create 2D visualizations of IP address space

Download:

Example:

We start with the following text files:

$ ls *.txt
bogon-bn-agg.txt loopback.txt     multicast.txt    private.txt

Each file contains a list of IPv4 prefixes in CIDR format. For example:

$ cat private.txt 
172.16.0.0/12
192.168.0.0/16
10.0.0.0/8

We now run ipmap (-p /20 means each pixel represents a /20):

$ ./ipmap -p /20 bogon-bn-agg.txt private.txt loopback.txt multicast.txt 
Represents one pixel:  /20
Total address space:   /0
Image width:           1024 pixels
Image size:            4194304 bytes (4 bytes/pixel)

allocating and blanking image...
ipmap allocated successfully
reading prefixes from bogon-bn-agg.txt...
0...
reading prefixes from private.txt...
0...
reading prefixes from loopback.txt...
0...
reading prefixes from multicast.txt...
0...
writing result image to PNG file: ipmap.png
done.

The result is 'ipmap.png' which is a visualization of those four sets of prefixes in relation to all of 32-bit IPv4 space:

We can also zoom in on a specific /8 network such as 172.16.0.0/12:

$ ./ipmap -f 172.16.0.0/12 -t /8 -p /24 private.txt

Which produces:

Documentation:

ipmap.1 manpage - C/C++ programmer's reference

BGP/Darknet Data Visualization With Google Maps - project page with more information on quad trees and an example use case.