<p>IPv6 PXE was included in the UEFI specification over eight years ago, specifically in <a href="http://www.uefi.org/sites/default/files/resources/UEFI_Spec_2_3_D.pdf" rel="nofollow">version 2.3 (Errata D)</a>.</p>
<p>When iPXE is being chainloaded from a UEFI firmware performing a PXE boot in an IPv6 network, it is essential that iPXE supports IPv6 as well.</p>
<p>I understand that the reason for <code>NET_PROTO_IPV6</code> being disabled by default (in <code>src/config/general.h</code>) is that it would cause certain space-constrained build targets to become too large. However, this should not be an issue for EFI builds.</p>
<p>It is also worth noting that <a href="https://tools.ietf.org/html/rfc6540" rel="nofollow">RFC 6540</a> makes a clear recommendation that IPv6 support should not be considered optional.</p>
<p>Signed-off-by: Tore Anderson <a href="mailto:tore@fud.no">tore@fud.no</a></p>

<hr>

<h4>You can view, comment on, or merge this pull request online at:</h4>
<p>  <a href='https://github.com/ipxe/ipxe/pull/84'>https://github.com/ipxe/ipxe/pull/84</a></p>

<h4>Commit Summary</h4>
<ul>
  <li>[efi] Enable NET_PROTO_IPV6 by default</li>
</ul>

<h4>File Changes</h4>
<ul>
  <li>
    <strong>M</strong>
    <a href="https://github.com/ipxe/ipxe/pull/84/files#diff-0">src/config/defaults/efi.h</a>
    (2)
  </li>
  <li>
    <strong>M</strong>
    <a href="https://github.com/ipxe/ipxe/pull/84/files#diff-1">src/config/general.h</a>
    (2)
  </li>
</ul>

<h4>Patch Links:</h4>
<ul>
  <li><a href='https://github.com/ipxe/ipxe/pull/84.patch'>https://github.com/ipxe/ipxe/pull/84.patch</a></li>
  <li><a href='https://github.com/ipxe/ipxe/pull/84.diff'>https://github.com/ipxe/ipxe/pull/84.diff</a></li>
</ul>

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