windows 8 pptp vpn problems

Hello everybody!
 
This is my first message in these forums.
 
Last week we made some major changes to our research center's IT infrastructure. More precisely, we bought 2 new servers, including one Dell with W2008 Standard. We configured the VPN (pptp and L2TP) on the W2008 machine. This machine has the IP: X.X.X.11. Ok then. That's a public IP, so, after forwarding the correct ports on the firewall, we can connect to the server and authenticate.
 
The problem is that, once connected to the VPN (we have several VLAN, so we need to activate "send all traffic through the vpn connection" option on the client side), we cannot ping the VPN server itself. I mean, once connected ping is not working for X.X.X.11. but it works for X.X.X.10, another machine with public IP on the network. In fact, we can ping everywhere (even though through the different VLANs). As we are not able to reach the machine X.X.X.11 (which, btw, is the domain controller for our domain), we cannot access any service on this machine. 
 
But, we can ping and reach the other interface on this server, created by the remote access service, and with IP X.X.X.180. So, it seems that once connected, we can only access the VPN server's services through the other interface (X.X.X.180) for administering, Active Directory logon (this is not possible now, because it's not attached to an interface), and so on.
 
Any of you have had the same situation??

 

 

 

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