Hello everyone.
You are my last hope . I have tried everything I can but I am not able to get this working , let me explain .
I have configured on my xp machine an instance of SME 7.4 via virtualbox . This is working fine ( I pass the details here) but I can basically connect from anywhere to the server using
PPTP . Once the Vpn connexion is up I can map the Ibays drive on my computer . Good

As
PPtP is not as secure as
Ipsec I have configured
Open vpn server on my xp machine .At this stage I can successfully open the Vpn connection from my work laptop where the Open vpn client is running to the Vpn server .

Before going any further here is the topology.
office ---------Internet --------------------------adslbox-----------------XP pc--------------SME ON VIRTUAL box
192.168.2.x x.dyndns.org 192.168.1.1 192.168.1.4 192.168.1.124
When I open the Ipsec tunnel I get 10.8.1.1 as Ip on the Openvpn server and 10.8.1.6 on the client , fine .
From the client (from my laptop in the office) I can ping 192.168.1.4 (My pc at home) but not 192.168.1.124 which is the Sme server.
I have tried to change the virtualbox network settings (I am using bridged mode at the moment) but no luck .
I have also tried a lot of different configuration on both the Open vpn server , no luck .
I am sure this is either a bug or a routing problem somewhere but I can not figure out what it is .
As anyone ever had the same issue before ? Please let me know what informations you need and I will post everything here ..
Thanks !
K.