On Tue, Feb 11, 2020 at 11:25:32AM +0100, Stefano Garzarella wrote: Do you want to mention that loopback works in the guest and on the host since Linux vX.Y and before that it only worked inside the guest? > @@ -164,6 +164,16 @@ Consider using > .B VMADDR_CID_ANY > when binding instead of getting the local CID with > .BR IOCTL_VM_SOCKETS_GET_LOCAL_CID . > +.SS Local communication > +The > +.B VMADDR_CID_LOCAL > +(1) can be used to address itself. In this case all packets are redirected > +to the same host that generated them. Useful for testing and debugging. This can be rephrased more naturally: .B VMADDR_CID_LOCAL (1) directs packets to the same host that generated them. This is useful for testing applications on a single host and for debugging.
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