title: How can I force set the MTU with C code?
body: <p>I have an issu with my device when I connect by TCP sockets, because the client send the MSS in the SYN connection and the server (my device) is setting with the same MSS, but I don't want set this MSS in my device. </p>
  
  <p>So how can I force setting this value in the MSS? </p>
  
  <p>I tried setting the <strong>MTU</strong> value with the <strong>setsockopt</strong> function with the IP_DONTFRAG</p>