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

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   Message 14,044 of 14,669   
   Barry Margolin to Pascal Hambourg   
   Re: icmp echo to a host with smaller mtu   
   22 Jun 13 10:14:47   
   
   From: barmar@alum.mit.edu   
      
   In article ,   
    Pascal Hambourg  wrote:   
      
   > Barry Margolin a écrit :   
   > >> 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.   
   > >   
   > > I'd expect B to receive the packet successfully, but it might not be   
   > > able to reply because the reply doesn't fit in the MTU.   
   >   
   > The reply can be sent with fragmentation.   
      
   Someone else pointed that out, and I acknowledged a week ago that I   
   forgot that ICMP could be fragmented, it was a stupid mistake. Was it   
   really necessary to dredge it up again?   
      
   --   
   Barry Margolin   
   Arlington, MA   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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