mirror of https://github.com/ipxe/ipxe.git
d72c8fdc90
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> |
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