Hi - I have a curious situation. The environment is a Linux CentOS 7 system with an ovs bridge (ovs-bridge) and two tap devices (abs-tap and qemu-tap). When running a qemu vm attached to qemu-tap I can receive (inside the qemu vm) arbitrary UDP packets. However, when I try to send a UDP packet from the qemu vm to the host system, it never arrives; that is, the host can send UDP packets to the vm but not the reverse. Well, it isn't that the vm can't send the packets - I'm sure it does - but the host doesn't get them.
To make it even more curious, if I start up a second vm attached to abs-tap, the two vms can send UDP packets to each other without a problem but neither can send a UDP packet to a real machine on the network. Am I missing something important in the bridging and tap device setup? -- ============================ Mike Elliott m...@m79.net ============================
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