Index: sys/net/if_tap.c
===================================================================
--- sys/net/if_tap.c	(revision 314036)
+++ sys/net/if_tap.c	(working copy)
@@ -617,7 +617,7 @@
 			dummy = ifmr->ifm_count;
 			ifmr->ifm_count = 1;
 			ifmr->ifm_status = IFM_AVALID;
-			ifmr->ifm_active = IFM_ETHER;
+			ifmr->ifm_active = IFM_ETHER | IFM_FDX | IFM_1000_T;
 			if (tp->tap_flags & TAP_OPEN)
 				ifmr->ifm_status |= IFM_ACTIVE;
 			ifmr->ifm_current = ifmr->ifm_active;