For some reason Gentoo calls 'gateway6' 'freenet6'. Upstream, tarball, manpage etc. all calls it 'gateway6'. 'freenet6' is only the name of one possible tunnel broker. It is confusing to have the package name and /etc/ directory conflicting with everything else, so I therefore suggest that this package be renamed appropriately.
assigning to maintainer
Finally done :) This was on my long todo list since version 5 Thanks for the bug report!