QEMU has a number of different ways of connecting the network to a virtualized guest, or vice-versa, connecting a virtualized guest to the network. The mechanism providing the most flexibility involves using a bridge mechanism plus a tap mechanism.
I'll resort to a cattle culling metaphor to explain the basic concept. Each cow represents a packet. The cows from the field are directed from the fields into a holding pen, which is loosely represented by the bridge concept. From the holding pen, individual cows are selected and directed to their destination, which is loosely represented by the tap. Continue reading "QEMU/KVM Bridge/Tap Network Configuration" »