I'm trying to test a new NIC from a virtual machine. The NIC has 2 ports which are connected by a loopback connector. These ports are available as eth0 and eth1 on the host machine.
I have configured the guest machine with a virtio-net interface. The new NIC isn't the default route from the host machine; I have another NIC for that. I would like to use tap networking, as I think that should offer the best performance. I followed the instructions at https://wiki.qemu.org/Documentation/Networking to configure a bridge in the host, and I currently have -netdev tap,id=n1,br=br0 -device virtio-net-pci,netdev=n1 in my qemu-system-x86_64 command (which I run as root). But this doesn't set up networking correctly in the guest machine. I get message W: /etc/qemu-ifup: no bridge for guest interface found Can anyone help me get my configuration working ? T J (Chris) Ward, IBM Research. Scalable Data-Centric Computing - IBM Spectrum MPI IBM United Kingdom Ltd., Hursley Park, Winchester, Hants, SO21 2JN 011-44-1962-818679 LinkedIn https://www.linkedin.com/in/tjcward/ ResearchGate https://www.researchgate.net/profile/Thomas_Ward16 IBM Research -- Data Centric Systems IBM Supercomputer Marketing IBM Branded Products IBM Branded Swag UNIX in the Cloud - Find A Place Where There's Room To Grow, with the original Open Standard. Free Trial Here Today Protein Folding by Supercomputer - BlueMatter Molecular Dynamics package. Data Tables - In-memory key-value store package. Linux on Windows - Virtualisation package. On the Lighthouse ! Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU
