diff --git a/tcp.c b/tcp.c
index 713248f..d043123 100644
--- a/tcp.c
+++ b/tcp.c
@@ -3213,9 +3213,9 @@ static void tcp_sock_init6(const struct ctx *c, int ns,
 void tcp_sock_init(const struct ctx *c, int ns, sa_family_t af,
 		   const void *addr, const char *ifname, in_port_t port)
 {
-	if (af == AF_INET || af == AF_UNSPEC)
+	if ((af == AF_INET  || af == AF_UNSPEC) && c->ifi4)
 		tcp_sock_init4(c, ns, addr, ifname, port);
-	if (af == AF_INET6 || af == AF_UNSPEC)
+	if ((af == AF_INET6 || af == AF_UNSPEC) && c->ifi6)
 		tcp_sock_init6(c, ns, addr, ifname, port);
 }
 
diff --git a/udp.c b/udp.c
index 42a17a7..ff7f993 100644
--- a/udp.c
+++ b/udp.c
@@ -1129,7 +1129,7 @@ void udp_sock_init(const struct ctx *c, int ns, sa_family_t af,
 					    c->udp.fwd_in.f.delta[port]);
 	}
 
-	if (af == AF_INET || af == AF_UNSPEC) {
+	if ((af == AF_INET || af == AF_UNSPEC) && c->ifi4) {
 		if (!addr && c->mode == MODE_PASTA)
 			bind_addr = &c->ip4.addr;
 		else
@@ -1162,7 +1162,7 @@ void udp_sock_init(const struct ctx *c, int ns, sa_family_t af,
 		}
 	}
 
-	if (af == AF_INET6 || af == AF_UNSPEC) {
+	if ((af == AF_INET6 || af == AF_UNSPEC) && c->ifi6) {
 		if (!addr && c->mode == MODE_PASTA)
 			bind_addr = &c->ip6.addr;
 		else