From: adam.lucarz@uni-duisburg.de   
      
   Hello,   
      
   I spent a lot of time to allow the access through the vpn tunnel on our   
   inner net. But i wasn't successful. Can someone maybe give me a hint?   
      
   The structure is as follows:   
      
   VPN(VPN Client) -> 192.168.1.0 -> Firewall (IPTables) -> 192.168.2.0   
      
   I can ping from the 192.168.2.0 net to the outside and through the   
   tunnel, but the access through the tunnel is not possible. The logs on   
   the firewall show me, that the packets are going to the 2.0 net and back   
   again. But the session is not established. The Firewall was of course   
   opened for the testing. But nevertheless, i tried the following   
   structure to exclude routing failures:   
      
   192.168.3.0 -> 192.168.1.0 -> Firewall (IPTables) -> 192.168.2.0   
      
   I could ping and work through all nets.   
      
   I really do not know where the error is. Please give me some hints. I   
   would be very pleasant.   
      
   Regards   
   Adam Lucarz   
      
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