1)  On systems running Upstart, shorewall-init cannot reliably secure
    the firewall before interfaces are brought up.

2)  The CHECKSUM target in the tcrules and mangle files is broken and
    results in this error diagnostic:

      Running /sbin/iptables-restore...
      iptables-restore v1.4.7: CHECKSUM target: Parameter --checksum-fill is
                               required
      Error occurred at line: 41
      Try `iptables-restore -h' or 'iptables-restore --help' for more
         information.
      ERROR: iptables-restore Failed. Input is in
         /var/lib/shorewall/.iptables-restore-input

    Corrected in 4.6.0.1


 
