diff --git a/src/ap/iapp.c b/src/ap/iapp.c
index 07672ce..2556da3 100644
--- a/src/ap/iapp.c
+++ b/src/ap/iapp.c
@@ -381,6 +381,7 @@
 	struct sockaddr_in *paddr, uaddr;
 	struct iapp_data *iapp;
 	struct ip_mreqn mreq;
+	int reuseaddr = 1;
 
 	iapp = os_zalloc(sizeof(*iapp));
 	if (iapp == NULL)
@@ -443,6 +444,18 @@
 	os_memset(&uaddr, 0, sizeof(uaddr));
 	uaddr.sin_family = AF_INET;
 	uaddr.sin_port = htons(IAPP_UDP_PORT);
+
+	if (setsockopt(iapp->udp_sock, SOL_SOCKET, SO_REUSEADDR, &reuseaddr,
+		       sizeof(reuseaddr)) < 0) {
+		wpa_printf(MSG_INFO,
+			   "iapp_init - setsockopt[UDP,SO_REUSEADDR]: %s",
+			   strerror(errno));
+		/*
+		 * Ignore this and try to continue. This is fine for single
+		 * BSS cases, but may fail if multiple BSSes enable IAPP.
+		 */
+	}
+
 	if (bind(iapp->udp_sock, (struct sockaddr *) &uaddr,
 		 sizeof(uaddr)) < 0) {
 		wpa_printf(MSG_INFO, "iapp_init - bind[UDP]: %s",
diff --git a/src/ap/ieee802_11.c b/src/ap/ieee802_11.c
index 555a731..eed5483 100644
--- a/src/ap/ieee802_11.c
+++ b/src/ap/ieee802_11.c
@@ -2557,8 +2557,9 @@
 		       "handle_action - unknown action category %d or invalid "
 		       "frame",
 		       mgmt->u.action.category);
-	if (!(mgmt->da[0] & 0x01) && !(mgmt->u.action.category & 0x80) &&
-	    !(mgmt->sa[0] & 0x01)) {
+	if (!is_multicast_ether_addr(mgmt->da) &&
+	    !(mgmt->u.action.category & 0x80) &&
+	    !is_multicast_ether_addr(mgmt->sa)) {
 		struct ieee80211_mgmt *resp;
 
 		/*
@@ -2901,7 +2902,7 @@
 			     size_t len, int ok)
 {
 	struct sta_info *sta;
-	if (mgmt->da[0] & 0x01)
+	if (is_multicast_ether_addr(mgmt->da))
 		return;
 	sta = ap_get_sta(hapd, mgmt->da);
 	if (!sta) {
@@ -2925,7 +2926,7 @@
 			       size_t len, int ok)
 {
 	struct sta_info *sta;
-	if (mgmt->da[0] & 0x01)
+	if (is_multicast_ether_addr(mgmt->da))
 		return;
 	sta = ap_get_sta(hapd, mgmt->da);
 	if (!sta) {
@@ -3130,7 +3131,7 @@
 
 	wpa_printf(MSG_DEBUG, "Data/PS-poll frame from not associated STA "
 		   MACSTR, MAC2STR(src));
-	if (src[0] & 0x01) {
+	if (is_multicast_ether_addr(src)) {
 		/* Broadcast bit set in SA?! Ignore the frame silently. */
 		return;
 	}
diff --git a/src/drivers/driver.h b/src/drivers/driver.h
index cf49847..a5c5c1b 100644
--- a/src/drivers/driver.h
+++ b/src/drivers/driver.h
@@ -1118,13 +1118,19 @@
 };
 
 struct wpa_driver_mesh_bss_params {
-#define WPA_DRIVER_MESH_CONF_FLAG_AUTO_PLINKS	0x00000001
+#define WPA_DRIVER_MESH_CONF_FLAG_AUTO_PLINKS		0x00000001
+#define WPA_DRIVER_MESH_CONF_FLAG_PEER_LINK_TIMEOUT	0x00000002
+#define WPA_DRIVER_MESH_CONF_FLAG_MAX_PEER_LINKS	0x00000004
+#define WPA_DRIVER_MESH_CONF_FLAG_HT_OP_MODE		0x00000008
 	/*
 	 * TODO: Other mesh configuration parameters would go here.
 	 * See NL80211_MESHCONF_* for all the mesh config parameters.
 	 */
 	unsigned int flags;
+	int auto_plinks;
 	int peer_link_timeout;
+	int max_peer_links;
+	u16 ht_opmode;
 };
 
 struct wpa_driver_mesh_join_params {
@@ -1136,7 +1142,6 @@
 	struct hostapd_freq_params freq;
 	int beacon_int;
 	int dtim_period;
-	int max_peer_links;
 	struct wpa_driver_mesh_bss_params conf;
 #define WPA_DRIVER_MESH_FLAG_USER_MPM	0x00000001
 #define WPA_DRIVER_MESH_FLAG_DRIVER_MPM	0x00000002
diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index 3391012..8d43c69 100644
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -200,6 +200,10 @@
 
 static int i802_set_iface_flags(struct i802_bss *bss, int up);
 static int nl80211_set_param(void *priv, const char *param);
+#ifdef CONFIG_MESH
+static int nl80211_put_mesh_config(struct nl_msg *msg,
+				   struct wpa_driver_mesh_bss_params *params);
+#endif /* CONFIG_MESH */
 
 
 /* Converts nl80211_chan_width to a common format */
@@ -3480,6 +3484,37 @@
 }
 
 
+#ifdef CONFIG_MESH
+static int nl80211_set_mesh_config(void *priv,
+				   struct wpa_driver_mesh_bss_params *params)
+{
+	struct i802_bss *bss = priv;
+	struct wpa_driver_nl80211_data *drv = bss->drv;
+	struct nl_msg *msg;
+	int ret;
+
+	msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_MESH_CONFIG);
+	if (!msg)
+		return -1;
+
+	ret = nl80211_put_mesh_config(msg, params);
+	if (ret < 0) {
+		nlmsg_free(msg);
+		return ret;
+	}
+
+	ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+	if (ret) {
+		wpa_printf(MSG_ERROR,
+			   "nl80211: Mesh config set failed: %d (%s)",
+			   ret, strerror(-ret));
+		return ret;
+	}
+	return 0;
+}
+#endif /* CONFIG_MESH */
+
+
 static int wpa_driver_nl80211_set_ap(void *priv,
 				     struct wpa_driver_ap_params *params)
 {
@@ -3493,6 +3528,9 @@
 	int smps_mode;
 	u32 suites[10], suite;
 	u32 ver;
+#ifdef CONFIG_MESH
+	struct wpa_driver_mesh_bss_params mesh_params;
+#endif /* CONFIG_MESH */
 
 	beacon_set = params->reenable ? 0 : bss->beacon_set;
 
@@ -3587,8 +3625,10 @@
 		goto fail;
 
 	if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
-	    params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40) &&
-	    nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT))
+	    (!params->pairwise_ciphers ||
+	     params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) &&
+	    (nla_put_u16(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE, ETH_P_PAE) ||
+	     nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT)))
 		goto fail;
 
 	wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x",
@@ -3716,6 +3756,18 @@
 			bss->bandwidth = params->freq->bandwidth;
 		}
 	}
+
+#ifdef CONFIG_MESH
+	if (is_mesh_interface(drv->nlmode) && params->ht_opmode != -1) {
+		os_memset(&mesh_params, 0, sizeof(mesh_params));
+		mesh_params.flags |= WPA_DRIVER_MESH_CONF_FLAG_HT_OP_MODE;
+		mesh_params.ht_opmode = params->ht_opmode;
+		ret = nl80211_set_mesh_config(priv, &mesh_params);
+		if (ret < 0)
+			return ret;
+	}
+#endif /* CONFIG_MESH */
+
 	return ret;
 fail:
 	nlmsg_free(msg);
@@ -4382,8 +4434,7 @@
 				   "nl80211: Failed to subscribe for mgmt frames from SME driver - trying to run without it");
 
 	if (!drv->device_ap_sme && drv->use_monitor &&
-	    nl80211_create_monitor_interface(drv) &&
-	    !drv->device_ap_sme)
+	    nl80211_create_monitor_interface(drv))
 		return -1;
 
 	if (drv->device_ap_sme &&
@@ -4904,6 +4955,14 @@
 	if (nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT))
 		return -1;
 
+	if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
+	    (params->pairwise_suite == WPA_CIPHER_NONE ||
+	     params->pairwise_suite == WPA_CIPHER_WEP104 ||
+	     params->pairwise_suite == WPA_CIPHER_WEP40) &&
+	    (nla_put_u16(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE, ETH_P_PAE) ||
+	     nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT)))
+		return -1;
+
 	if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED &&
 	    nla_put_u32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED))
 		return -1;
@@ -8404,6 +8463,46 @@
 }
 
 
+static int nl80211_put_mesh_config(struct nl_msg *msg,
+				   struct wpa_driver_mesh_bss_params *params)
+{
+	struct nlattr *container;
+
+	container = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
+	if (!container)
+		return -1;
+
+	if (((params->flags & WPA_DRIVER_MESH_CONF_FLAG_AUTO_PLINKS) &&
+	     nla_put_u32(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
+			 params->auto_plinks)) ||
+	    ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_MAX_PEER_LINKS) &&
+	     nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
+			 params->max_peer_links)))
+		return -1;
+
+	/*
+	 * Set NL80211_MESHCONF_PLINK_TIMEOUT even if user mpm is used because
+	 * the timer could disconnect stations even in that case.
+	 */
+	if ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_PEER_LINK_TIMEOUT) &&
+	    nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
+			params->peer_link_timeout)) {
+		wpa_printf(MSG_ERROR, "nl80211: Failed to set PLINK_TIMEOUT");
+		return -1;
+	}
+
+	if ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_HT_OP_MODE) &&
+	    nla_put_u16(msg, NL80211_MESHCONF_HT_OPMODE, params->ht_opmode)) {
+		wpa_printf(MSG_ERROR, "nl80211: Failed to set HT_OP_MODE");
+		return -1;
+	}
+
+	nla_nest_end(msg, container);
+
+	return 0;
+}
+
+
 static int nl80211_join_mesh(struct i802_bss *bss,
 			     struct wpa_driver_mesh_join_params *params)
 {
@@ -8448,29 +8547,12 @@
 		goto fail;
 	nla_nest_end(msg, container);
 
-	container = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
-	if (!container)
+	params->conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_AUTO_PLINKS;
+	params->conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_PEER_LINK_TIMEOUT;
+	params->conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_MAX_PEER_LINKS;
+	if (nl80211_put_mesh_config(msg, &params->conf) < 0)
 		goto fail;
 
-	if (!(params->conf.flags & WPA_DRIVER_MESH_CONF_FLAG_AUTO_PLINKS) &&
-	    nla_put_u32(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, 0))
-		goto fail;
-	if (nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
-			params->max_peer_links))
-		goto fail;
-
-	/*
-	 * Set NL80211_MESHCONF_PLINK_TIMEOUT even if user mpm is used because
-	 * the timer could disconnect stations even in that case.
-	 */
-	if (nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
-			params->conf.peer_link_timeout)) {
-		wpa_printf(MSG_ERROR, "nl80211: Failed to set PLINK_TIMEOUT");
-		goto fail;
-	}
-
-	nla_nest_end(msg, container);
-
 	ret = send_and_recv_msgs(drv, msg, NULL, NULL);
 	msg = NULL;
 	if (ret) {