diff --git a/sys/net/if_gif.c b/sys/net/if_gif.c
index 0d672f4f967f..c209608709d9 100644
--- a/sys/net/if_gif.c
+++ b/sys/net/if_gif.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: if_gif.c,v 1.133 2017/11/27 05:02:22 knakahara Exp $	*/
+/*	$NetBSD: if_gif.c,v 1.134 2017/11/27 05:05:50 knakahara Exp $	*/
 /*	$KAME: if_gif.c,v 1.76 2001/08/20 02:01:02 kjc Exp $	*/
 
 /*
@@ -31,7 +31,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_gif.c,v 1.133 2017/11/27 05:02:22 knakahara Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_gif.c,v 1.134 2017/11/27 05:05:50 knakahara Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_inet.h"
@@ -378,8 +378,7 @@ gif_encapcheck(struct mbuf *m, int off, int proto, void *arg)
 	if (sc == NULL)
 		return 0;
 
-	if ((sc->gif_if.if_flags & (IFF_UP|IFF_RUNNING))
-	    != (IFF_UP|IFF_RUNNING))
+	if ((sc->gif_if.if_flags & IFF_UP) == 0)
 		return 0;
 
 	var = gif_getref_variant(sc, &psref);
@@ -492,7 +491,7 @@ gif_output(struct ifnet *ifp, struct mbuf *m, const struct sockaddr *dst,
 		goto end;
 	}
 
-	if ((ifp->if_flags & (IFF_UP|IFF_RUNNING)) != (IFF_UP|IFF_RUNNING)) {
+	if ((ifp->if_flags & IFF_UP) == 0) {
 		m_freem(m);
 		error = ENETDOWN;
 		goto end;
diff --git a/sys/netinet/in_gif.c b/sys/netinet/in_gif.c
index f9fd071e92b8..01eb08321c78 100644
--- a/sys/netinet/in_gif.c
+++ b/sys/netinet/in_gif.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: in_gif.c,v 1.90 2017/11/27 05:02:22 knakahara Exp $	*/
+/*	$NetBSD: in_gif.c,v 1.91 2017/11/27 05:05:51 knakahara Exp $	*/
 /*	$KAME: in_gif.c,v 1.66 2001/07/29 04:46:09 itojun Exp $	*/
 
 /*
@@ -31,7 +31,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: in_gif.c,v 1.90 2017/11/27 05:02:22 knakahara Exp $");
+__KERNEL_RCSID(0, "$NetBSD: in_gif.c,v 1.91 2017/11/27 05:05:51 knakahara Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_inet.h"
@@ -216,7 +216,7 @@ in_gif_input(struct mbuf *m, int off, int proto, void *eparg)
 	ip = mtod(m, const struct ip *);
 
 	gifp = &sc->gif_if;
-	if ((gifp->if_flags & (IFF_UP|IFF_RUNNING)) != (IFF_UP|IFF_RUNNING)) {
+	if ((gifp->if_flags & IFF_UP) == 0) {
 		m_freem(m);
 		ip_statinc(IP_STAT_NOGIF);
 		return;
diff --git a/sys/netinet6/in6_gif.c b/sys/netinet6/in6_gif.c
index 34581f0b948d..cc6af43b3508 100644
--- a/sys/netinet6/in6_gif.c
+++ b/sys/netinet6/in6_gif.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: in6_gif.c,v 1.88 2017/11/27 05:02:22 knakahara Exp $	*/
+/*	$NetBSD: in6_gif.c,v 1.89 2017/11/27 05:05:51 knakahara Exp $	*/
 /*	$KAME: in6_gif.c,v 1.62 2001/07/29 04:27:25 itojun Exp $	*/
 
 /*
@@ -31,7 +31,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: in6_gif.c,v 1.88 2017/11/27 05:02:22 knakahara Exp $");
+__KERNEL_RCSID(0, "$NetBSD: in6_gif.c,v 1.89 2017/11/27 05:05:51 knakahara Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_inet.h"
@@ -233,7 +233,7 @@ in6_gif_input(struct mbuf **mp, int *offp, int proto, void *eparg)
 	ip6 = mtod(m, struct ip6_hdr *);
 
 	gifp = &sc->gif_if;
-	if ((gifp->if_flags & (IFF_UP|IFF_RUNNING)) != (IFF_UP|IFF_RUNNING)) {
+	if ((gifp->if_flags & IFF_UP) == 0) {
 		m_freem(m);
 		IP6_STATINC(IP6_STAT_NOGIF);
 		return IPPROTO_DONE;