tcpproxy is a simple tcp connection proxy which combines the features of rinetd and 6tunnel. tcpproxy supports IPv4 and IPv6 and also supports connections from IPv6 to IPv4 endpoints and vice versa.
The current source code can be found at the svn repository of the project:
See the README for further information.
# svn co https://svn.spreadspace.org/tcpproxy/trunk tcpproxy # cd tcpproxy/src # make