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XNF(4) Device Drivers Manual XNF(4)

Xen Netfront networking interface

xnf* at xen?

The xnf driver provides support for a paravirtual networking interface “Netfront” native to the Xen hypervisor.
During attach the xnf driver will ask the hypervisor to switch all configured virtual interfaces over to the Netfront interface regardless of the VM configuration.

autoconf(4), intro(4), xen(4)

The xnf driver first appeared in OpenBSD 5.9.

The xnf driver was written by Mike Belopuhov <mikeb@openbsd.org> from scratch, inspired by the FreeBSD implementation.
January 15, 2016 OpenBSD-current