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Michael Brown d72c8fdc90 [cachedhcp] Allow cached DHCPACK to override a temporary MAC address 
When running on a system with an ACPI-provided system-specific MAC
address, iPXE will apply this address to an ECM or NCM USB NIC.  If
iPXE has been chainloaded from a previous stage that does not
understand the ACPI MAC mechanism then this can result in iPXE using a
different MAC address than the previous stage, which is surprising to
users.

Attempt to minimise surprise by allowing the MAC address found in a
cached DHCPACK packet to override a temporary MAC address, if the
DHCPACK MAC address matches the network device's permanent MAC
address.  When a previous stage has chosen to use the network device's
permanent MAC address (e.g. because it does not understand the ACPI
MAC mechanism), this will cause iPXE to make the same choice.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
 		2022-05-23 13:05:24 +01:00
.github/workflows [linux] Use host glibc system call wrappers 2021-02-28 23:28:23 +00:00
contrib [cloud] Allow aws-import script to run on Python 3.6 2022-04-06 14:36:07 +01:00
src [cachedhcp] Allow cached DHCPACK to override a temporary MAC address 2022-05-23 13:05:24 +01:00
COPYING [legal] Update GPLv2 licence text 2015-02-26 17:59:53 +00:00
COPYING.GPLv2 [legal] Update GPLv2 licence text 2015-02-26 17:59:53 +00:00
COPYING.UBDL [legal] Add support for the Unmodified Binary Distribution Licence 2015-03-02 12:07:14 +00:00
README [doc] Re-add README file 2010-05-28 00:03:47 +01:00

README 

iPXE README File

Quick start guide:

   cd src
   make

For any more detailed instructions, see http://ipxe.org