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

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   Message 14,058 of 14,669   
   Barry Margolin to Jorgen Grahn   
   Re: can anyone explain this - from rfc79   
   25 Sep 13 11:26:34   
   
   From: barmar@alum.mit.edu   
      
   In article ,   
    Jorgen Grahn  wrote:   
      
   > On Tue, 2013-09-24, nnaemeka.david@gmail.com wrote:   
   >   
   > > "a single physical host must be able to act as if it were several   
   > > distinct hosts to the extent of using several distinct internet   
   > > addresses."   
   > > I wonder if anyone can explain this to me. I know what multi-homing   
   > > is about as regards interfaces, but this "virtualizing" of hosts as   
   > > regards to addresses, I have not seen it described in any textbook.   
   >   
   > I think they simply meant what the next paragraph says:   
   >   
   >     That is, provision must be made for a host to have several   
   >     physical interfaces to the network with each having several   
   >     logical internet addresses.   
   >   
   > They write "distinct hosts", but I don't think that means   
   > virtualization, or anything else beyond "someone talking to you via   
   > address A shouldn't have to know that you also serve using addresses   
   > B--Z".   
      
   And furthermore, there's no confusion between the IPs. If a client   
   connects to a server on address A, the source address of outgoing   
   packets must be A, not B.   
      
   --   
   Barry Margolin   
   Arlington, MA   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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