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  1. JDK
  2. JDK-8238725

DatagramSocket/DatagramChannel should support setting "Don't fragment" option

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Details

    • Enhancement
    • Resolution: Duplicate
    • P2
    • None
    • 16
    • core-libs
    • x86_64
    • generic

    Description

      A DESCRIPTION OF THE PROBLEM :
      The DatagramSocket and DatagramChannel APIs do not support setting the (IP header) "Don't fragment" flag on outgoing UDP packets. This is problematic for implementing the QUIC protocol in Java, as it requires the DF flag to be set.

      Quote from https://tools.ietf.org/html/draft-ietf-quic-transport-25#section-14:
      "In IPv4 [IPv4], the DF bit MUST be set to prevent fragmentation on the path."


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          duplicates

          Enhancement - null JDK-8284890 Support for Do not fragment IP socket options

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

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              michaelm Michael McMahon
              webbuggrp Webbug Group
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                Created:
                Updated:
                Resolved: