From: mike-newsgroup@-DELETETHISPART-.upcraft.com   
      
   Jeroen Kuivenhoven wrote:   
   > Hi all,   
   >   
   > I have a question about a VPN tunnel.   
   >   
   > I can build a tunnel from my notebook (which has a Greenbow VPN Client   
   > installed) to my Zywall 5 at home.   
   > When I enter the local IP-address of the Zywall, I can web-administrate it.   
   > So far so good.   
   >   
   > But when I send e-mails, my SMTP server is unreachable.   
   > If I use the SMTP-server of the network I'm connected to at that moment (the   
   > neighbours' wireless), the e-mail sends immediately.   
   >   
   > It is as if all traffic goes over the VPN, exept for my outgoing e-mail.   
   >   
   > Can anyone help me ?   
   >   
   >   
   > Thanks in advance, kind regards,   
   >   
   >   
   > Jeroen Kuivenhoven   
   >   
   > Poeldijk, The Netherlands.   
      
   Sounds like your VPN is not sending all traffic through the remote   
   router.  You are doing what is called a split tunnel.  Only traffic   
   destined for the remote routers local subnet is going over the VPN and   
   everything else is going directly over the local internet connection   
   unencrypted.  So if you were doing this as a form of security on a   
   hostile network like an open wi-fi then you are likely transmitting   
   everything you wanted to be secure in to the clear.   
      
   If the remote network subnet in your IPSEC configuration is not 0.0.0.0   
   (aka Send all traffic to remote VPN server) then you have a split tunnel.   
      
      
      
      
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   Mike Drechsler (mike-newsgroup@-deletethispart-.upcraft.com)   
      
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