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  1. LWIP based TCP/IP
  2. PSLWIP-303

DHCP/BootP xid is always initialized with 0xABCD0001

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: V4.2.0.0
    • Labels:
      None
    • Account:
      SPC TCP_IP (SPCTCPIP)

      Description

      DHCP/BootP xid should always be randomly generated as defined per RFC2131 Section 4.1:

      The 'xid' field is used by the client to match incoming DHCP messages
      with pending requests.  A DHCP client MUST choose 'xid's in such a
      way as to minimize the chance of using an 'xid' identical to one used
      by another client. For example, a client may choose a different,
      random initial 'xid' each time the client is rebooted, and
      subsequently use sequential 'xid's until the next reboot.  Selecting
      a new 'xid' for each retransmission is an implementation decision.  A
      client may choose to reuse the same 'xid' or select a new 'xid' for
      each retransmitted message.

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                  • Reporter:
                    KMichel Kai Michel
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                    Dates

                    • Created:
                      Updated:
                      Resolved: