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   comp.dcom.vpn      VPN protocols, clients, awesomeness      2,349 messages   

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   Message 1,834 of 2,349   
   Stephen J. Bevan to jslarose@cheerful.com   
   Re: VPN - Same IP's   
   18 Nov 05 03:37:47   
   
   From: stephen@dino.dnsalias.com   
      
   jslarose@cheerful.com writes:   
   > This seems to work ok so far ... have a question on the effects of   
   > several home users logging in with the same ip address though.  What   
   > happens when several home users that have been assigned 192.168.0.1 by   
   > their home routers all log into the vpn at the same time?  Does this   
   > create any conflicts or is this not even a factor when using vpn?   
      
   I don't know about a PIX specifically but the following are   
   possibilities :-   
      
   a) the PIX would reject the connection of the *second* user using   
      192.168.0.1 to avoid the possibility of a routing conflict.   
      
   b) the PIX will allow multiple users to connect with 192.168.0.1 but   
      this will result in a routing conflict so either all traffic to   
      192.168.0.1 will go to one of the users or it will flap back and   
      forth causing TCP connections to fail and traffic to be lost.   
      
   c) the PIX has been configured to dynamically NAT all remote subnets   
      to another IP range to ensure that everyone appears to have a   
      unique subnet and so avoid a routing conflict.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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