Re: [I] [HELP] add 802.1Q header [nuttx]</span></a></span> </h1> <p class="darkgray font13"> <span class="sender pipe"><a href="/search?l=commits@nuttx.apache.org&q=from:%22via+GitHub%22" rel="nofollow"><span itemprop="author" itemscope itemtype="http://schema.org/Person"><span itemprop="name">via GitHub</span></span></a></span> <span class="date"><a href="/search?l=commits@nuttx.apache.org&q=date:20250904" rel="nofollow">Thu, 04 Sep 2025 10:25:34 -0700</a></span> </p> </div> <div itemprop="articleBody" class="msgBody"> <!--X-Body-of-Message--> <pre> matiamic commented on issue #16814: URL: <a rel="nofollow" href="https://github.com/apache/nuttx/issues/16814#issuecomment-3252624759">https://github.com/apache/nuttx/issues/16814#issuecomment-3252624759</a></pre><pre> Sounds like expected behavior of [`arp_out`](<a rel="nofollow" href="https://github.com/apache/nuttx/blob/b5f6620a4c85735b28bbfdf2a806f4f40ea4de95/net/arp/arp_out.c#L106-L133">https://github.com/apache/nuttx/blob/b5f6620a4c85735b28bbfdf2a806f4f40ea4de95/net/arp/arp_out.c#L106-L133</a>). This should happen only after reset (or when arp cache is dropped maybe). The incoming ICMP echo request is processed by the net stack and the ICMP echo reply is then saved into the output buffer. Before sending, the `arp_out` is called. No arp cache entry is found for the given IP, the contents of the output buffer are replaced with the ARP request, the ICMP reply is lost forever. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. 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