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** Changed in: qemu Status: New => Incomplete -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1744009 Title: qemu for windows fails to use multicast socket as netdev Status in QEMU: Incomplete Bug description: My host OS is Windows 7 x64 SP1. I installed qemu for windows from https://qemu.weilnetz.de/w64/.The version is 2.10.1, qemu-w64-setup-20171006.exe. I run qemu with the following command: qemu-system-x86_64.exe -net nic -net socket,mcast=234.5.5.5:6000 disk1.qcow2 It stopped with error: bind: Unknown error qemu-system-x86_64.exe: -net socket,mcast=234.5.5.5:6000: Device 'socket' could not be initialized Using the -netdev option has the same problem: qemu-system-x86_64.exe -netdev socket,id=hostnet0,mcast=234.5.5.5:6000 -device e1000,netdev=hostnet0 disk1.qcow2 I tried many versions from https://qemu.weilnetz.de/w64/, but none of them could work. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1744009/+subscriptions