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diff --git a/usr.sbin/bhyve/net_backends.c b/usr.sbin/bhyve/net_backends.c
--- a/usr.sbin/bhyve/net_backends.c
+++ b/usr.sbin/bhyve/net_backends.c
@@ -119,7 +119,8 @@
goto error;
}
- if (ioctl(be->fd, VMIO_SIOCSIFFLAGS, up)) {
+ if (strncmp("ngd", be->prefix, 3)
+ && ioctl(be->fd, VMIO_SIOCSIFFLAGS, up)) {
EPRINTLN("tap device link up failed");
goto error;
}
@@ -273,8 +274,24 @@
.set_cap = tap_set_cap,
};
+/* A clone of the tap backend, with a different prefix. */
+static struct net_backend ngd_backend = {
+ .prefix = "ngd",
+ .priv_size = sizeof(struct tap_priv),
+ .init = tap_init,
+ .cleanup = tap_cleanup,
+ .send = tap_send,
+ .peek_recvlen = tap_peek_recvlen,
+ .recv = tap_recv,
+ .recv_enable = tap_recv_enable,
+ .recv_disable = tap_recv_disable,
+ .get_cap = tap_get_cap,
+ .set_cap = tap_set_cap,
+};
+
DATA_SET(net_backend_set, tap_backend);
DATA_SET(net_backend_set, vmnet_backend);
+DATA_SET(net_backend_set, ngd_backend);
int
netbe_legacy_config(nvlist_t *nvl, const char *opts)

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