Index: sys/net/if_epair.c
===================================================================
--- sys/net/if_epair.c
+++ sys/net/if_epair.c
@@ -441,6 +441,7 @@
 		 */
 		EPAIR_REFCOUNT_AQUIRE(&sc->refcount);
 		m->m_pkthdr.rcvif = oifp;
+		m_tag_delete_nonpersistent(m);
 		CURVNET_SET_QUIET(oifp->if_vnet);
 		error = netisr_queue(NETISR_EPAIR, m);
 		CURVNET_RESTORE();
@@ -545,6 +546,8 @@
 	IF_UNLOCK(&ifp->if_snd);
 #endif
 
+	m_tag_delete_nonpersistent(m);
+
 	if ((epair_dpcpu->epair_drv_flags & IFF_DRV_OACTIVE) != 0) {
 		/*
 		 * Our hardware queue is full, try to fall back