So far there are two freely usable ART implementations. The one is the routing table in the KAME IPv6 stack. The other is my implementation which is downloadable from this page.
The KAME implementation supports arbitrary stride length
distribution. My implementation supports Path Compression and
arbitrary stride length distribution.
ART Source Code
Current version is 1.2.
Disclaimer
The ART algorithm and my ART implementation are free. However,
it does not mean I guarantee that the ART algorithm or my ART
implementation does not infringe any others' intellectual
properties. In no event shall I be liable for any infringement
of any others' intellectual properties.
Last modified: Tue Jul 2 11:59:51 PDT 2013