Axis2c does not support IPv6 at all. One may find for instance calls like
"socket(AF_INET, SOCK_STREAM, 0)"
spread all over the file util/src/network_handler.c. Another related element is the IP address parser, that is completely unaware that ':' might not always delimit a port number.
The good thing is that we have come up with a partial patch, that works in our solution and allowed us to run web services in an IPv6 environment. If anyone is interested in testing, developing and integrating it with Axis2c, please let me know, I would provide source codes.