[lwip-devel] [bug #58139] RFC5227 violation in acd module

[Jasper Verschueren]

URL:
  <https://savannah.nongnu.org/bugs/?58139>

                 Summary: RFC5227 violation in acd module
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: jasperv
            Submitted on: Wed 08 Apr 2020 10:37:11 AM CEST
                Category: IPv4
                Severity: 3 - Normal
              Item Group: Faulty Behaviour
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None
            lwIP version: git head

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Details:

According to RFC5227 section 2.3: The host may begin legitimately using the IP
address immediately after sending the first of the two ARP Announcements; the
sending of the second ARP Announcement may be completed asynchronously,
concurrent with other networking operations the host may wish to perform.

This behavior is recently changed by commit 30d445bd acd: inform address is
good only when going in ongoing state.
Currently we only let the acd user know that the address is good after all
announce messages have been send. 

So I request to revert this commit.








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