I have to use a pretty outdated, and no longer supported VPN client on my Fedora 28 install. This client to be specific.

The following compatibility packages are required to be able to run it.

sudo dnf install compat-libstdc++-33.i686 \ 
 pam.i686 \ 
 glibc.i686 \ 
 libX11.i686 \ 
 libnsl.i686