Specifically, I think the issue is in https://git.launchpad.net/ubuntu/+source/shim/tree/netboot.c#n293
memcpy(&tftp_addr.v4, pkt_v4->BootpSiAddr, 4); There should be an "if proxy ... use that one for tftp ... else use BootpSiAddr" at that point. -- 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