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   comp.protocols.tcp-ip      TCP and IP network protocols.      14,669 messages   

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   Message 12,804 of 14,669   
   pk to lancer6238@yahoo.com   
   Re: VPN packet format   
   09 Apr 09 13:10:32   
   
   91044f93   
   From: pk@pk.invalid   
      
   On Thursday 9 April 2009 03:07, lancer6238@yahoo.com wrote:   
      
   > Did you write your "outer" header on the right, meaning in payload ->   
   > tcp/udp -> ip -> esp -> ip, the rightmost ip is the outer layer, and   
   > the payload -> tcp/udp -> ip before esp is the original IP packet?   
      
   Yes.   
      
   > I wrote my "outer" layers on the left   
      
   What you wrote was not correct regardless of the direction you read it.   
      
   > , so I would actually have IP -> ESP -> IP -> TCP/UDP -> payload, where   
   > IP -> TCP/UDP -> payload is the encapsulated original IP packet.   
      
   Yes. However, that is not what you wrote originally.   
      
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