[ipxe-devel] [ipxe/ipxe] [efi] Enable NET_PROTO_IPV6 by default (#84)

[Tore Anderson]

IPv6 PXE was included in the UEFI specification over eight years ago, specifically in [version 2.3 (Errata D)](http://www.uefi.org/sites/default/files/resources/UEFI_Spec_2_3_D.pdf).

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.

I understand that the reason for `NET_PROTO_IPV6` being disabled by default (in `src/config/general.h`) is that it would cause certain space-constrained build targets to become too large. However, this should not be an issue for EFI builds.

It is also worth noting that [RFC 6540](https://tools.ietf.org/html/rfc6540) makes a clear recommendation that IPv6 support should not be considered optional.

Signed-off-by: Tore Anderson <tore at fud.no>
You can view, comment on, or merge this pull request online at:

  https://github.com/ipxe/ipxe/pull/84

-- Commit Summary --

  * [efi] Enable NET_PROTO_IPV6 by default

-- File Changes --

    M src/config/defaults/efi.h (2)
    M src/config/general.h (2)

-- Patch Links --

https://github.com/ipxe/ipxe/pull/84.patch
https://github.com/ipxe/ipxe/pull/84.diff

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