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

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   Message 13,859 of 14,669   
   Barry Margolin to thedeerhunter1978@movie.uni   
   Re: Broadcast gratuitous ARP and ARP cac   
   02 Jun 12 11:35:05   
   
   From: barmar@alum.mit.edu   
      
   In article ,   
    TDH1978  wrote:   
      
   > Does anyone know why Y will not update its ARP cache when receiving a   
   > broadcast gratuitous ARP request?  Thanks much.   
      
   My understanding is that when you receive a gratuitous ARP, you're   
   supposed to update an existing cache entry for that IP.  But you're NOT   
   expected to add NEW entries.  This is to avoid filling up your ARP cache   
   with addresses you have no intent to communicate with.   
      
   --   
   Barry Margolin   
   Arlington, MA   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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