VPN connection using Mac

Hi,

I'm using FortiClient 5.4.0.493 on OS X 10.9.5.

I've successfully established a VPN connection previously on Windows 7 using FortiClient 4.3.5.473.

Please see the connection configuration I've exported on Windows (I've redacted the hashes):

                <connection>                     <name>My Connection</name>                     <type>manual</type>                     <ike_settings>                         <server>vpn.our-server.com</server>                         <authentication_method>Preshared Key</authentication_method>                         <auth_key>Enc presharedKeyHash</auth_key>                         <mode>aggressive</mode>                         <dhgroup>5;</dhgroup>                         <key_life>28800</key_life>                         <localid></localid>                         <nat_traversal>1</nat_traversal>                         <enable_local_lan>0</enable_local_lan>                         <nat_alive_freq>5</nat_alive_freq>                         <dpd>1</dpd>                         <dpd_retry_count>3</dpd_retry_count>                         <dpd_retry_interval>5</dpd_retry_interval>                         <xauth>                             <enabled>1</enabled>                             <username>Enc usernameHash</username>                             <password></password>                             <attempts_allowed>3</attempts_allowed>                         </xauth>                         <proposals>                             <proposal>AES128|SHA1</proposal>                         </proposals>                     </ike_settings>                     <ipsec_settings>                         <remote_networks>                             <network>                                 <addr>10.7.0.0</addr>                                 <mask>255.255.255.0</mask>                             </network>                         </remote_networks>                         <dhgroup>5</dhgroup>                         <key_life_type>seconds</key_life_type>                         <key_life_seconds>1800</key_life_seconds>                         <key_life_Kbytes>5120</key_life_Kbytes>                         <replay_detection>1</replay_detection>                         <pfs>1</pfs>                         <autokey_key_alive>1</autokey_key_alive>                         <use_vip>1</use_vip>                         <virtualip>                             <type>dhcpoveripsec</type>                             <ip>0.0.0.0</ip>                             <mask>0.0.0.0</mask>                             <dnsserver>0.0.0.0</dnsserver>                             <winserver>0.0.0.0</winserver>                         </virtualip>                         <proposals>                             <proposal>AES128|SHA1</proposal>                         </proposals>                     </ipsec_settings>                 </connection>

I've figured out that the virtualip part of the configuration is problematic:

                        <virtualip>                             <type>dhcpoveripsec</type>                             <ip>0.0.0.0</ip>                             <mask>0.0.0.0</mask>                             <dnsserver>0.0.0.0</dnsserver>                             <winserver>0.0.0.0</winserver>                         </virtualip>

Trying to import the above configuration on Mac with this part fails; The connection just doesn't show up in the FortiClient GUI.

Others have had this problem too.

If I remove the virtualip part of the configuration and import it on Mac, the imported connection shows up in the GUI but when I try to establish a VPN connection I get (after quite a while) the error -104.

How can I establish a VPN connection on Mac using the above connection configuration?

Thanks a lot in advance.