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

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   Message 14,020 of 14,669   
   Jorgen Grahn to rahul.dev.agg@gmail.com   
   Re: icmp echo to a host with smaller mtu   
   12 Jun 13 12:53:31   
   
   From: grahn+nntp@snipabacken.se   
      
   On Wed, 2013-06-12, rahul.dev.agg@gmail.com wrote:   
   > Guys,   
   >   
   > I have two linux machines (A and B) connected to same link   
   > (ethernet). The MTU supported is 1500.   
      
   > If I change the mtu to 1280 of one the host (say B), then can I send   
      
   My take on this is: you cannot really change the MTU on an interface   
   -- you can only tell the interface the actual MTU on the link.   
   If you lie to it, anything can happen.  Or, rather, I assume anything   
   can happen.   
      
   So I wouldn't set the MTU to X unless I could be sure all other hosts   
   were set to X too, and that X is in fact supported by the medium.   
      
   Are you doing this out of curiosity, or are you trying to solve a   
   problem?   
      
   /Jorgen   
      
   --   
     // Jorgen Grahn    O  o   .   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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