UEFI BitlockerUnlock failed with DHCPv4 only case.

[Santhapur Naveen <naveens@amiindia.co.in>]

Hello All,

          I have been facing a problem i.e., Network Unlock is failing when tried with DHCP4 only by disabling TCP/IPv6. My server configuration is as below:


1.    WDS Server details
I.P: 10.10.10.11
Net Mask: 255.255.255.0

2.    DHCP Server details
IP: 10.10.10.2
Scope: 10.10.10.10 - 10.10.10.200

          After some debugging it was found that the changes in the file MdeModulePkg/Universal/Network/Dhcp4Dxe/Dhcp4Impl.c is the reason. If I use the old file, it works fine.

Microsoft Network Unlock link(reference): https://technet.microsoft.com/en-us/library/jj574173(v=ws.11).aspx


Note: WDS and DHCP are configure on two different machines. When I tested with DHCPv6 only by disabling TCP/IPv4 on WDS server, I was able to login successfully.

          I've attached the working and non-working source. Please help me to resolve this with latest ekd2 source.


Thank you,
Naveen