The PXE specification, which also describes proxyDHCP, can be found for example at: http://www.pix.net/software/pxeboot/archive/pxespec.pdf
The "proof" that the proxyDHCP server should be used as the TFTP server, is the fact that shimx64.efi was indeed downloaded by the UEFI firmware from the proxyDHCP server. This is true for all UEFI and BIOS firmwares, and for iPXE and any other client that understands PXE services. Shim just needs to follow suit and use the same TFTP server where it's located at. ** Changed in: shim (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1813541 Title: Shim uses wrong TFTP server IP in proxyDHCP mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shim/+bug/1813541/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs