Just one question ... did you have a look into the documentation in /usr/share/doc/ipplan/, especially into /usr/share/doc/ipplan/README.Debian?
You can read there:
The default ipplan alias in /etc/ipplan/apache.conf has been disabled to
prevent the alias from affecting every virtual host. Feel free to re-enable
the alias if necessary.
Just one question ... did you have a look into the documentation in /usr/share/ doc/ipplan/ , especially into /usr/share/ doc/ipplan/ README. Debian?
You can read there:
The default ipplan alias in /etc/ipplan/ apache. conf has been disabled to
prevent the alias from affecting every virtual host. Feel free to re-enable
the alias if necessary.