diff --git a/ipacm/inc/IPACM_Defs.h b/ipacm/inc/IPACM_Defs.h
index 6157d1f..65d5ce4 100644
--- a/ipacm/inc/IPACM_Defs.h
+++ b/ipacm/inc/IPACM_Defs.h
@@ -122,6 +122,7 @@
 #define IPA_MAX_NUM_ETH_CLIENTS  15
 #define IPA_MAX_NUM_AMPDU_RULE  15
 #define IPA_MAC_ADDR_SIZE  6
+#define IPA_MAX_NUM_SW_PDNS 15
 
 /*===========================================================================
 										 GLOBAL DEFINITIONS AND DECLARATIONS
@@ -186,7 +187,8 @@
 	IPA_ETH_BRIDGE_CLIENT_ADD,                /* ipacm_event_eth_bridge */
 	IPA_ETH_BRIDGE_CLIENT_DEL,                /* ipacm_event_eth_bridge*/
 	IPA_ETH_BRIDGE_WLAN_SCC_MCC_SWITCH,       /* ipacm_event_eth_bridge*/
-	IPA_SSR_NOTICE,						      /* NULL*/
+	IPA_SSR_NOTICE,                           /* NULL*/
+	IPA_COALESCE_NOTICE,                      /* NULL*/
 #ifdef FEATURE_L2TP
 	IPA_ADD_VLAN_IFACE,                       /* ipa_ioc_vlan_iface_info */
 	IPA_DEL_VLAN_IFACE,                       /* ipa_ioc_vlan_iface_info */
diff --git a/ipacm/inc/IPACM_Wan.h b/ipacm/inc/IPACM_Wan.h
index b9456c1..d66224a 100644
--- a/ipacm/inc/IPACM_Wan.h
+++ b/ipacm/inc/IPACM_Wan.h
@@ -89,6 +89,12 @@
 	wan_client_rt_hdl wan_rt_hdl[0]; /* depends on number of tx properties */
 }ipa_wan_client;
 
+typedef struct
+{
+	bool coalesce_tcp_enable;
+	bool coalesce_udp_enable;
+}ipacm_coalesce;
+
 /* wan iface */
 class IPACM_Wan : public IPACM_Iface
 {
@@ -215,6 +221,32 @@
 		return IPACM_SUCCESS;
 	}
 #endif
+	static void coalesce_config(uint8_t qmap_id, bool tcp_enable, bool udp_enable)
+	{
+		if (qmap_id >= IPA_MAX_NUM_SW_PDNS)
+		{
+			IPACMERR("qmap_id (%d) beyond the Max range (%d), abort\n",
+				qmap_id, IPA_MAX_NUM_SW_PDNS);
+			return ;
+		}
+
+		IPACM_Wan::coalesce_enable_info[qmap_id].coalesce_tcp_enable = tcp_enable;
+		IPACM_Wan::coalesce_enable_info[qmap_id].coalesce_udp_enable = udp_enable;
+		IPACMDBG_H(" Updated qmap(%d) coalesce enable TCP:%d UDP:%d\n",
+				qmap_id,
+				IPACM_Wan::coalesce_enable_info[qmap_id].coalesce_tcp_enable,
+				IPACM_Wan::coalesce_enable_info[qmap_id].coalesce_udp_enable);
+		return ;
+	}
+
+	static void coalesce_config_reset()
+	{
+		int i;
+		/* reset coalesce settings on all modem interfaces */
+		for (i = 0; i < IPA_MAX_NUM_SW_PDNS; i++)
+			IPACM_Wan::coalesce_config(i, false, false);
+		return ;
+	}
 
 	static uint32_t getWANIP()
 	{
@@ -268,6 +300,9 @@
 	}
 #endif
 
+	/* indicate coalesce support on tcp or udp*/
+	static ipacm_coalesce coalesce_enable_info[IPA_MAX_NUM_SW_PDNS];
+
 private:
 
 	bool is_ipv6_frag_firewall_flt_rule_installed;
@@ -298,6 +333,8 @@
 	bool header_partial_default_wan_v6;
 	uint8_t ext_router_mac_addr[IPA_MAC_ADDR_SIZE];
 	uint8_t netdev_mac[IPA_MAC_ADDR_SIZE];
+	/* create additional set of v4 Coalesce RT-rules: tcp udp */
+	uint32_t dft_coalesce_rt_rule_hdl[2*MAX_DEFAULT_v4_ROUTE_RULES+ 2*MAX_DEFAULT_v6_ROUTE_RULES];
 
 	static int num_ipv4_modem_pdn;
 
@@ -583,6 +620,8 @@
 
 	/* construct dummy ethernet header */
 	int add_dummy_rx_hdr();
+
+	int handle_coalesce_evt();
 };
 
 #endif /* IPACM_WAN_H */
diff --git a/ipacm/src/IPACM_IfaceManager.cpp b/ipacm/src/IPACM_IfaceManager.cpp
index 1c7dfc4..3e825dd 100644
--- a/ipacm/src/IPACM_IfaceManager.cpp
+++ b/ipacm/src/IPACM_IfaceManager.cpp
@@ -484,6 +484,7 @@
 					}
 					else
 					{
+						IPACM_EvtDispatcher::registr(IPA_COALESCE_NOTICE, w);
 						IPACM_EvtDispatcher::registr(IPA_LINK_DOWN_EVENT, w);
 					}
 
diff --git a/ipacm/src/IPACM_Main.cpp b/ipacm/src/IPACM_Main.cpp
index 04f8a89..eef15d9 100644
--- a/ipacm/src/IPACM_Main.cpp
+++ b/ipacm/src/IPACM_Main.cpp
@@ -240,6 +240,10 @@
 #endif
 	struct ipa_get_data_stats_resp_msg_v01 event_data_stats;
 	struct ipa_get_apn_data_stats_resp_msg_v01 event_network_stats;
+#ifdef IPA_RT_SUPPORT_COAL
+	struct ipa_coalesce_info coalesce_info;
+#endif
+
 #ifdef FEATURE_IPACM_HAL
 	IPACM_OffloadManager* OffloadMng;
 #endif
@@ -821,6 +825,40 @@
 			evt_data.evt_data = mapping;
 			break;
 #endif
+#ifdef IPA_RT_SUPPORT_COAL
+		case IPA_COALESCE_ENABLE:
+			memcpy(&coalesce_info, buffer + sizeof(struct ipa_msg_meta), sizeof(struct ipa_coalesce_info));
+			IPACMDBG_H("Received IPA_COALESCE_ENABLE qmap-id:%d tcp:%d, udp%d\n",
+				coalesce_info.qmap_id, coalesce_info.tcp_enable, coalesce_info.udp_enable);
+			if (coalesce_info.qmap_id >=IPA_MAX_NUM_SW_PDNS)
+			{
+				IPACMERR("qmap_id (%d) beyond the Max range (%d), abort\n",
+				coalesce_info.qmap_id, IPA_MAX_NUM_SW_PDNS);
+				return NULL;
+			}
+			IPACM_Wan::coalesce_config(coalesce_info.qmap_id, coalesce_info.tcp_enable, coalesce_info.udp_enable);
+			/* Notify all LTE instance to do RSC configuration */
+			evt_data.event = IPA_COALESCE_NOTICE;
+			evt_data.evt_data = NULL;
+			break;
+
+		case IPA_COALESCE_DISABLE:
+			memcpy(&coalesce_info, buffer + sizeof(struct ipa_msg_meta), sizeof(struct ipa_coalesce_info));
+			IPACMDBG_H("Received IPA_COALESCE_DISABLE qmap-id:%d tcp:%d, udp%d\n",
+				coalesce_info.qmap_id, coalesce_info.tcp_enable, coalesce_info.udp_enable);
+			if (coalesce_info.qmap_id >=IPA_MAX_NUM_SW_PDNS)
+			{
+				IPACMERR("qmap_id (%d) beyond the Max range (%d), abort\n",
+				coalesce_info.qmap_id, IPA_MAX_NUM_SW_PDNS);
+				return NULL;
+			}
+			IPACM_Wan::coalesce_config(coalesce_info.qmap_id, false, false);
+			/* Notify all LTE instance to do RSC configuration */
+			evt_data.event = IPA_COALESCE_NOTICE;
+			evt_data.evt_data = NULL;
+			break;
+#endif
+
 		default:
 			IPACMDBG_H("Unhandled message type: %d\n", event_hdr.msg_type);
 			continue;
@@ -912,6 +950,8 @@
 	IPACMDBG_H("Staring IPA main\n");
 	IPACMDBG_H("ipa_cmdq_successful\n");
 
+	/* reset coalesce settings */
+	IPACM_Wan::coalesce_config_reset();
 
 	RegisterForSignals();
 
diff --git a/ipacm/src/IPACM_Wan.cpp b/ipacm/src/IPACM_Wan.cpp
index fe15232..26210ea 100644
--- a/ipacm/src/IPACM_Wan.cpp
+++ b/ipacm/src/IPACM_Wan.cpp
@@ -79,6 +79,8 @@
 bool IPACM_Wan::backhaul_is_wan_bridge = false;
 bool IPACM_Wan::is_xlat = false;
 
+ipacm_coalesce IPACM_Wan::coalesce_enable_info[IPA_MAX_NUM_SW_PDNS];
+
 uint32_t IPACM_Wan::backhaul_ipv6_prefix[2];
 
 #ifdef FEATURE_IPA_ANDROID
@@ -269,29 +271,11 @@
 		rt_rule->commit = 1;
 		rt_rule->num_rules = NUM_RULES;
 		rt_rule->ip = data->iptype;
+		/* setup RT rule for v6_lan table*/
 		strlcpy(rt_rule->rt_tbl_name, IPACM_Iface::ipacmcfg->rt_tbl_v6.name, sizeof(rt_rule->rt_tbl_name));
 
 		rt_rule_entry = &rt_rule->rules[0];
-		if(m_is_sta_mode == Q6_WAN)
-		{
-			strlcpy(hdr.name, tx_prop->tx[0].hdr_name, sizeof(hdr.name));
-			hdr.name[IPA_RESOURCE_NAME_MAX-1] = '\0';
-			if(m_header.GetHeaderHandle(&hdr) == false)
-			{
-				IPACMERR("Failed to get QMAP header.\n");
-				return IPACM_FAILURE;
-			}
-			rt_rule_entry->rule.hdr_hdl = hdr.hdl;
-		}
 		rt_rule_entry->at_rear = false;
-		if(m_is_sta_mode == Q6_WAN)
-		{
-			rt_rule_entry->rule.dst = IPA_CLIENT_APPS_WAN_CONS;
-		}
-		else
-		{
-			rt_rule_entry->rule.dst = IPA_CLIENT_APPS_LAN_CONS;
-		}
 		rt_rule_entry->rule.attrib.attrib_mask = IPA_FLT_DST_ADDR;
 		rt_rule_entry->rule.attrib.u.v6.dst_addr[0] = data->ipv6_addr[0];
 		rt_rule_entry->rule.attrib.u.v6.dst_addr[1] = data->ipv6_addr[1];
@@ -308,6 +292,90 @@
 #ifdef FEATURE_IPA_V3
 		rt_rule_entry->rule.hashable = false;
 #endif
+		if(m_is_sta_mode == Q6_WAN)
+		{
+			strlcpy(hdr.name, tx_prop->tx[0].hdr_name, sizeof(hdr.name));
+			hdr.name[IPA_RESOURCE_NAME_MAX-1] = '\0';
+			if(m_header.GetHeaderHandle(&hdr) == false)
+			{
+				IPACMERR("Failed to get QMAP header.\n");
+				return IPACM_FAILURE;
+			}
+			rt_rule_entry->rule.hdr_hdl = hdr.hdl;
+			rt_rule_entry->rule.dst = IPA_CLIENT_APPS_WAN_CONS;
+			/* legacy default v4 rt-rule */
+#ifdef IPA_RT_SUPPORT_COAL
+			rt_rule_entry->rule.coalesce = false;
+#endif
+			/* legacy default v6 rt-rule */
+			if (false == m_routing.AddRoutingRule(rt_rule))
+			{
+				IPACMERR("Routing rule addition failed!\n");
+				res = IPACM_FAILURE;
+				goto fail;
+			}
+			else if (rt_rule_entry->status)
+			{
+				IPACMERR("rt rule adding failed. Result=%d\n", rt_rule_entry->status);
+				res = rt_rule_entry->status;
+				goto fail;
+			}
+			dft_rt_rule_hdl[MAX_DEFAULT_v4_ROUTE_RULES + 2*num_dft_rt_v6] = rt_rule_entry->rt_rule_hdl;
+
+			/* setup same rule for v6_wan table*/
+			strlcpy(rt_rule->rt_tbl_name, IPACM_Iface::ipacmcfg->rt_tbl_wan_v6.name, sizeof(rt_rule->rt_tbl_name));
+			if (false == m_routing.AddRoutingRule(rt_rule))
+			{
+				IPACMERR("Routing rule addition failed!\n");
+				res = IPACM_FAILURE;
+				goto fail;
+		}
+			else if (rt_rule_entry->status)
+		{
+				IPACMERR("rt rule adding failed. Result=%d\n", rt_rule_entry->status);
+				res = rt_rule_entry->status;
+				goto fail;
+		}
+			dft_rt_rule_hdl[MAX_DEFAULT_v4_ROUTE_RULES + 2*num_dft_rt_v6+1] = rt_rule_entry->rt_rule_hdl;
+
+			IPACMDBG_H("ipv6 wan iface rt-rule hdl=0x%x hdl=0x%x, entry: %d %d\n",
+					dft_rt_rule_hdl[MAX_DEFAULT_v4_ROUTE_RULES + 2*num_dft_rt_v6],
+					dft_rt_rule_hdl[MAX_DEFAULT_v4_ROUTE_RULES + 2*num_dft_rt_v6+1],
+					MAX_DEFAULT_v4_ROUTE_RULES + 2*num_dft_rt_v6,
+					MAX_DEFAULT_v4_ROUTE_RULES + 2*num_dft_rt_v6+1);
+			/* RSC TCP rule*/
+			rt_rule_entry->rule.attrib.attrib_mask |= IPA_FLT_NEXT_HDR;
+			rt_rule_entry->rule.attrib.u.v6.next_hdr = (uint8_t)IPACM_FIREWALL_IPPROTO_TCP;
+#ifdef IPA_RT_SUPPORT_COAL
+			if (IPACM_Wan::coalesce_enable_info[ext_prop->ext[0].mux_id].coalesce_tcp_enable)
+				rt_rule_entry->rule.coalesce = true;
+		else
+				rt_rule_entry->rule.coalesce = false;
+#endif
+			if (false == m_routing.AddRoutingRule(rt_rule))
+		{
+				IPACMERR("Routing rule addition failed!\n");
+				res = IPACM_FAILURE;
+				goto fail;
+			}
+			else if (rt_rule_entry->status)
+			{
+				IPACMERR("rsc tcp rt rule adding failed. Result=%d\n", rt_rule_entry->status);
+				res = rt_rule_entry->status;
+				goto fail;
+		}
+			dft_coalesce_rt_rule_hdl[2*MAX_DEFAULT_v4_ROUTE_RULES + 2*num_dft_rt_v6] = rt_rule_entry->rt_rule_hdl;
+			IPACMDBG_H("ipv6 wan iface rsc tcp rt-rule hdll=0x%x\n enable(%d), entry %d", dft_coalesce_rt_rule_hdl[2*MAX_DEFAULT_v4_ROUTE_RULES + 2*num_dft_rt_v6],
+				IPACM_Wan::coalesce_enable_info[ext_prop->ext[0].mux_id].coalesce_tcp_enable,
+				2*MAX_DEFAULT_v4_ROUTE_RULES + 2*num_dft_rt_v6);
+			/* RSB UDP rule*/
+			rt_rule_entry->rule.attrib.u.v6.next_hdr = (uint8_t)IPACM_FIREWALL_IPPROTO_UDP;
+#ifdef IPA_RT_SUPPORT_COAL
+			if (IPACM_Wan::coalesce_enable_info[ext_prop->ext[0].mux_id].coalesce_udp_enable)
+				rt_rule_entry->rule.coalesce = true;
+			else
+				rt_rule_entry->rule.coalesce = false;
+#endif
 		if (false == m_routing.AddRoutingRule(rt_rule))
 		{
 			IPACMERR("Routing rule addition failed!\n");
@@ -316,6 +384,27 @@
 		}
 		else if (rt_rule_entry->status)
 		{
+				IPACMERR("rsb udp rt rule adding failed. Result=%d\n", rt_rule_entry->status);
+				res = rt_rule_entry->status;
+				goto fail;
+			}
+			dft_coalesce_rt_rule_hdl[2*MAX_DEFAULT_v4_ROUTE_RULES + 2*num_dft_rt_v6+1] = rt_rule_entry->rt_rule_hdl;
+			IPACMDBG_H("ipv6 wan iface rsb udp rt-rule hdll=0x%x\n enable(%d) entry %d", dft_coalesce_rt_rule_hdl[2*MAX_DEFAULT_v4_ROUTE_RULES + 2*num_dft_rt_v6+1],
+				IPACM_Wan::coalesce_enable_info[ext_prop->ext[0].mux_id].coalesce_udp_enable,
+				2*MAX_DEFAULT_v4_ROUTE_RULES + 2*num_dft_rt_v6+1);
+		}
+		else
+		{
+			rt_rule_entry->rule.dst = IPA_CLIENT_APPS_LAN_CONS;
+			/* legacy default v6 rt-rule */
+			if (false == m_routing.AddRoutingRule(rt_rule))
+			{
+				IPACMERR("Routing rule addition failed!\n");
+				res = IPACM_FAILURE;
+				goto fail;
+			}
+			else if (rt_rule_entry->status)
+			{
 			IPACMERR("rt rule adding failed. Result=%d\n", rt_rule_entry->status);
 			res = rt_rule_entry->status;
 			goto fail;
@@ -338,9 +427,12 @@
 		}
 		dft_rt_rule_hdl[MAX_DEFAULT_v4_ROUTE_RULES + 2*num_dft_rt_v6+1] = rt_rule_entry->rt_rule_hdl;
 
-		IPACMDBG_H("ipv6 wan iface rt-rule hdl=0x%x hdl=0x%x, num_dft_rt_v6: %d \n",
+			IPACMDBG_H("ipv6 wan iface rt-rule hdl=0x%x hdl=0x%x, entry: %d  %d\n",
 				dft_rt_rule_hdl[MAX_DEFAULT_v4_ROUTE_RULES + 2*num_dft_rt_v6],
-				dft_rt_rule_hdl[MAX_DEFAULT_v4_ROUTE_RULES + 2*num_dft_rt_v6+1],num_dft_rt_v6);
+					dft_rt_rule_hdl[MAX_DEFAULT_v4_ROUTE_RULES + 2*num_dft_rt_v6+1],
+					MAX_DEFAULT_v4_ROUTE_RULES + 2*num_dft_rt_v6,
+					MAX_DEFAULT_v4_ROUTE_RULES + 2*num_dft_rt_v6+1);
+		}
 
 		/* add default filtering rules when wan-iface get global v6-prefix */
 		if (num_dft_rt_v6 == 1)
@@ -443,6 +535,21 @@
 			else
 			{
 				IPACMDBG_H(" device (%s) ipv4 addr is changed\n", dev_name);
+				/* Delete default Coalese v4 RT rule */
+				if (m_is_sta_mode == Q6_WAN) {
+					if (m_routing.DeleteRoutingHdl(dft_coalesce_rt_rule_hdl[0], IPA_IP_v4) == false)
+					{
+						IPACMERR("Routing old RSC TCP RT rule deletion failed!\n");
+						res = IPACM_FAILURE;
+						goto fail;
+					}
+					if (m_routing.DeleteRoutingHdl(dft_coalesce_rt_rule_hdl[1], IPA_IP_v4) == false)
+					{
+						IPACMERR("Routing old RSB UDP RT rule deletion failed!\n");
+						res = IPACM_FAILURE;
+						goto fail;
+					}
+				}
 				/* Delete default v4 RT rule */
 				IPACMDBG_H("Delete default v4 routing rules\n");
 				if (m_routing.DeleteRoutingHdl(dft_rt_rule_hdl[0], IPA_IP_v4) == false)
@@ -468,22 +575,6 @@
 		rt_rule->num_rules = NUM_RULES;
 		rt_rule->ip = data->iptype;
 		rt_rule_entry = &rt_rule->rules[0];
-		if(m_is_sta_mode == Q6_WAN)
-		{
-			strlcpy(hdr.name, tx_prop->tx[0].hdr_name, sizeof(hdr.name));
-			hdr.name[IPA_RESOURCE_NAME_MAX-1] = '\0';
-			if(m_header.GetHeaderHandle(&hdr) == false)
-			{
-				IPACMERR("Failed to get QMAP header.\n");
-				return IPACM_FAILURE;
-			}
-			rt_rule_entry->rule.hdr_hdl = hdr.hdl;
-			rt_rule_entry->rule.dst = IPA_CLIENT_APPS_WAN_CONS;
-		}
-		else
-		{
-			rt_rule_entry->rule.dst = IPA_CLIENT_APPS_LAN_CONS;
-		}
 		rt_rule_entry->at_rear = false;
 		rt_rule_entry->rule.attrib.attrib_mask = IPA_FLT_DST_ADDR;
 		/* still need setup v4 default routing rule to A5*/
@@ -493,6 +584,72 @@
 #ifdef FEATURE_IPA_V3
 		rt_rule_entry->rule.hashable = false;
 #endif
+		if(m_is_sta_mode == Q6_WAN)
+		{
+			/* query qmap header*/
+			strlcpy(hdr.name, tx_prop->tx[0].hdr_name, sizeof(hdr.name));
+			hdr.name[IPA_RESOURCE_NAME_MAX-1] = '\0';
+			if(m_header.GetHeaderHandle(&hdr) == false)
+			{
+				IPACMERR("Failed to get QMAP header.\n");
+				res = IPACM_FAILURE;
+				goto fail;
+			}
+			rt_rule_entry->rule.hdr_hdl = hdr.hdl;
+			rt_rule_entry->rule.dst = IPA_CLIENT_APPS_WAN_CONS;
+			/* legacy default v4 rt-rule */
+#ifdef IPA_RT_SUPPORT_COAL
+			rt_rule_entry->rule.coalesce = false;
+#endif
+			/* legacy default v4 rt-rule */
+			if (false == m_routing.AddRoutingRule(rt_rule))
+			{
+				IPACMERR("Routing rule addition failed!\n");
+				res = IPACM_FAILURE;
+				goto fail;
+			}
+			else if (rt_rule_entry->status)
+			{
+				IPACMERR("rt rule adding failed. Result=%d\n", rt_rule_entry->status);
+				res = rt_rule_entry->status;
+				goto fail;
+		}
+			dft_rt_rule_hdl[0] = rt_rule_entry->rt_rule_hdl;
+			IPACMDBG_H("ipv4 wan iface rt-rule hdll=0x%x\n", dft_rt_rule_hdl[0]);
+			/* RSC TCP rule*/
+			rt_rule_entry->rule.attrib.attrib_mask |= IPA_FLT_PROTOCOL;
+			rt_rule_entry->rule.attrib.u.v4.protocol = (uint8_t)IPACM_FIREWALL_IPPROTO_TCP;
+
+#ifdef IPA_RT_SUPPORT_COAL
+			if (IPACM_Wan::coalesce_enable_info[ext_prop->ext[0].mux_id].coalesce_tcp_enable)
+				rt_rule_entry->rule.coalesce = true;
+		else
+				rt_rule_entry->rule.coalesce = false;
+#endif
+			if (false == m_routing.AddRoutingRule(rt_rule))
+		{
+				IPACMERR("Routing rule addition failed!\n");
+				res = IPACM_FAILURE;
+				goto fail;
+			}
+			else if (rt_rule_entry->status)
+			{
+				IPACMERR("rsc tcp rt rule adding failed. Result=%d\n", rt_rule_entry->status);
+				res = rt_rule_entry->status;
+				goto fail;
+		}
+			dft_coalesce_rt_rule_hdl[0] = rt_rule_entry->rt_rule_hdl;
+			IPACMDBG_H("ipv4 wan iface rsc tcp rt-rule hdll=0x%x\n enable(%d)", dft_coalesce_rt_rule_hdl[0],
+				IPACM_Wan::coalesce_enable_info[ext_prop->ext[0].mux_id].coalesce_tcp_enable);
+
+			/* RSB UDP rule*/
+			rt_rule_entry->rule.attrib.u.v4.protocol = (uint8_t)IPACM_FIREWALL_IPPROTO_UDP;
+#ifdef IPA_RT_SUPPORT_COAL
+			if (IPACM_Wan::coalesce_enable_info[ext_prop->ext[0].mux_id].coalesce_udp_enable)
+				rt_rule_entry->rule.coalesce = true;
+			else
+				rt_rule_entry->rule.coalesce = false;
+#endif
 		if (false == m_routing.AddRoutingRule(rt_rule))
 		{
 			IPACMERR("Routing rule addition failed!\n");
@@ -501,14 +658,35 @@
 		}
 		else if (rt_rule_entry->status)
 		{
+				IPACMERR("rsb udp rt rule adding failed. Result=%d\n", rt_rule_entry->status);
+				res = rt_rule_entry->status;
+				goto fail;
+			}
+			dft_coalesce_rt_rule_hdl[1] = rt_rule_entry->rt_rule_hdl;
+			IPACMDBG_H("ipv4 wan iface rsb udp rt-rule hdll=0x%x\n enable(%d)", dft_coalesce_rt_rule_hdl[1],
+				IPACM_Wan::coalesce_enable_info[ext_prop->ext[0].mux_id].coalesce_udp_enable);
+		}
+		else
+		{
+			rt_rule_entry->rule.dst = IPA_CLIENT_APPS_LAN_CONS;
+			/* legacy default v4 rt-rule */
+			if (false == m_routing.AddRoutingRule(rt_rule))
+			{
+				IPACMERR("Routing rule addition failed!\n");
+				res = IPACM_FAILURE;
+				goto fail;
+			}
+			else if (rt_rule_entry->status)
+			{
 			IPACMERR("rt rule adding failed. Result=%d\n", rt_rule_entry->status);
 			res = rt_rule_entry->status;
 			goto fail;
 		}
 		dft_rt_rule_hdl[0] = rt_rule_entry->rt_rule_hdl;
 		IPACMDBG_H("ipv4 wan iface rt-rule hdll=0x%x\n", dft_rt_rule_hdl[0]);
-			/* initial multicast/broadcast/fragment filter rule */
+		}
 
+			/* initial multicast/broadcast/fragment filter rule */
 		/* only do one time */
 		if(!wan_v4_addr_set)
 		{
@@ -912,6 +1090,15 @@
 		}
 		break;
 
+	case IPA_COALESCE_NOTICE:
+		{
+			if (m_is_sta_mode == Q6_WAN)
+			{
+				IPACMDBG_H("Received IPA_COALESCE_NOTICE (wan_mode:%d)\n", m_is_sta_mode);
+				handle_coalesce_evt();
+			}
+		}
+		break;
 	case IPA_LINK_DOWN_EVENT:
 		{
 			ipacm_event_data_fid *data = (ipacm_event_data_fid *)param;
@@ -4884,6 +5071,7 @@
 		/* Delete default v4 RT rule */
 		if (ip_type != IPA_IP_v6)
 		{
+			/* no need delete v4 RSC routing rules */
 			IPACMDBG_H("Delete default v4 routing rules\n");
 			if (m_routing.DeleteRoutingHdl(dft_rt_rule_hdl[0], IPA_IP_v4) == false)
 			{
@@ -5145,6 +5333,21 @@
 		install_wan_filtering_rule(false);
 		}
 
+		IPACMDBG_H("Delete default v4 coalesce routing rules\n");
+		if (m_routing.DeleteRoutingHdl(dft_coalesce_rt_rule_hdl[0], IPA_IP_v4) == false)
+		{
+			IPACMERR("Routing rule RSC TCP deletion failed!\n");
+			res = IPACM_FAILURE;
+			goto fail;
+		}
+
+		if (m_routing.DeleteRoutingHdl(dft_coalesce_rt_rule_hdl[1], IPA_IP_v4) == false)
+		{
+			IPACMERR("Routing rule RSB UDP deletion failed!\n");
+			res = IPACM_FAILURE;
+			goto fail;
+		}
+
 		if (m_routing.DeleteRoutingHdl(dft_rt_rule_hdl[0], IPA_IP_v4) == false)
 		{
 			IPACMERR("Routing rule deletion failed!\n");
@@ -5203,6 +5406,13 @@
 
 		for (i = 0; i < 2*num_dft_rt_v6; i++)
 		{
+			/* delete v6 colasce rules */
+			if (m_routing.DeleteRoutingHdl(dft_coalesce_rt_rule_hdl[2*MAX_DEFAULT_v4_ROUTE_RULES+i], IPA_IP_v6) == false)
+			{
+				IPACMERR("Colasce Routing rule deletion failed!\n");
+				res = IPACM_FAILURE;
+				goto fail;
+			}
 			if (m_routing.DeleteRoutingHdl(dft_rt_rule_hdl[MAX_DEFAULT_v4_ROUTE_RULES+i], IPA_IP_v6) == false)
 			{
 				IPACMERR("Routing rule deletion failed!\n");
@@ -5287,6 +5497,21 @@
 			install_wan_filtering_rule(false);
 		}
 
+		IPACMDBG_H("Delete default v4 coalesce routing rules\n");
+		if (m_routing.DeleteRoutingHdl(dft_coalesce_rt_rule_hdl[0], IPA_IP_v4) == false)
+		{
+			IPACMERR("Routing rule RSC TCP deletion failed!\n");
+			res = IPACM_FAILURE;
+			goto fail;
+		}
+
+		if (m_routing.DeleteRoutingHdl(dft_coalesce_rt_rule_hdl[1], IPA_IP_v4) == false)
+		{
+			IPACMERR("Routing rule RSB UDP deletion failed!\n");
+			res = IPACM_FAILURE;
+			goto fail;
+		}
+
 		if (m_routing.DeleteRoutingHdl(dft_rt_rule_hdl[0], IPA_IP_v4) == false)
 		{
 			IPACMERR("Routing rule deletion failed!\n");
@@ -5296,6 +5521,13 @@
 
 		for (i = 0; i < 2*num_dft_rt_v6; i++)
 		{
+			/* delete v6 colasce rules */
+			if (m_routing.DeleteRoutingHdl(dft_coalesce_rt_rule_hdl[2*MAX_DEFAULT_v4_ROUTE_RULES+i], IPA_IP_v6) == false)
+			{
+				IPACMERR("Colasce Routing rule deletion failed!\n");
+				res = IPACM_FAILURE;
+				goto fail;
+			}
 			if (m_routing.DeleteRoutingHdl(dft_rt_rule_hdl[MAX_DEFAULT_v4_ROUTE_RULES+i], IPA_IP_v6) == false)
 			{
 				IPACMERR("Routing rule deletion failed!\n");
@@ -6679,3 +6911,289 @@
 	}
 	return IPACM_SUCCESS;
 }
+
+int IPACM_Wan::handle_coalesce_evt()
+{
+	struct ipa_ioc_add_rt_rule *rt_rule = NULL;
+	struct ipa_rt_rule_add *rt_rule_entry;
+	const int NUM_RULES = 1;
+	int res = IPACM_SUCCESS;
+	struct ipa_ioc_get_hdr hdr;
+	uint32_t i;
+
+	if(wan_v4_addr_set)
+	{
+		/* Delete default RSC v4 RT rule */
+		if (m_routing.DeleteRoutingHdl(dft_coalesce_rt_rule_hdl[0], IPA_IP_v4) == false)
+		{
+			IPACMERR("Routing old RSC TCP RT rule deletion failed!\n");
+			return  IPACM_FAILURE;
+		}
+		if (m_routing.DeleteRoutingHdl(dft_coalesce_rt_rule_hdl[1], IPA_IP_v4) == false)
+		{
+			IPACMERR("Routing old RSB UDP RT rule deletion failed!\n");
+			return  IPACM_FAILURE;
+		}
+		/* Delete default v4 RT rule */
+		IPACMDBG_H("Delete default v4 routing rules\n");
+		if (m_routing.DeleteRoutingHdl(dft_rt_rule_hdl[0], IPA_IP_v4) == false)
+		{
+			IPACMERR("Routing old RT rule deletion failed!\n");
+			return  IPACM_FAILURE;
+		}
+
+		/* apply the new coalesce configuration */
+		rt_rule = (struct ipa_ioc_add_rt_rule *)
+			 calloc(1, sizeof(struct ipa_ioc_add_rt_rule) +
+							NUM_RULES * sizeof(struct ipa_rt_rule_add));
+		if (!rt_rule)
+		{
+			IPACMERR("Error Locate ipa_ioc_add_rt_rule memory...\n");
+			return IPACM_FAILURE;
+		}
+		rt_rule->commit = 1;
+		rt_rule->num_rules = NUM_RULES;
+		rt_rule->ip = IPA_IP_v4;
+		rt_rule_entry = &rt_rule->rules[0];
+		rt_rule_entry->at_rear = false;
+		rt_rule_entry->rule.attrib.attrib_mask = IPA_FLT_DST_ADDR;
+		/* still need setup v4 default routing rule to APPs*/
+		strlcpy(rt_rule->rt_tbl_name, IPACM_Iface::ipacmcfg->rt_tbl_lan_v4.name, sizeof(rt_rule->rt_tbl_name));
+		rt_rule_entry->rule.attrib.u.v4.dst_addr = wan_v4_addr;
+		rt_rule_entry->rule.attrib.u.v4.dst_addr_mask = 0xFFFFFFFF;
+#ifdef FEATURE_IPA_V3
+		rt_rule_entry->rule.hashable = false;
+#endif
+		/* query qmap header*/
+		memset(&hdr, 0, sizeof(hdr));
+		strlcpy(hdr.name, tx_prop->tx[0].hdr_name, sizeof(hdr.name));
+		hdr.name[IPA_RESOURCE_NAME_MAX-1] = '\0';
+		if(m_header.GetHeaderHandle(&hdr) == false)
+		{
+			IPACMERR("Failed to get QMAP header.\n");
+			res = IPACM_FAILURE;
+			goto fail;
+		}
+		rt_rule_entry->rule.hdr_hdl = hdr.hdl;
+		rt_rule_entry->rule.dst = IPA_CLIENT_APPS_WAN_CONS;
+		/*  default v4 rt-rule */
+#ifdef IPA_RT_SUPPORT_COAL
+			rt_rule_entry->rule.coalesce = false;
+#endif
+		/* default v4 rt-rule */
+		if (false == m_routing.AddRoutingRule(rt_rule))
+		{
+			IPACMERR("Routing rule addition failed!\n");
+			res = IPACM_FAILURE;
+			goto fail;
+		}
+		else if (rt_rule_entry->status)
+		{
+			IPACMERR("rt rule adding failed. Result=%d\n", rt_rule_entry->status);
+			res = rt_rule_entry->status;
+			goto fail;
+		}
+		dft_rt_rule_hdl[0] = rt_rule_entry->rt_rule_hdl;
+		IPACMDBG_H("ipv4 wan iface rt-rule hdll=0x%x\n", dft_rt_rule_hdl[0]);
+
+		/* RSC TCP rule*/
+		rt_rule_entry->rule.attrib.attrib_mask |= IPA_FLT_PROTOCOL;
+		rt_rule_entry->rule.attrib.u.v4.protocol = (uint8_t)IPACM_FIREWALL_IPPROTO_TCP;
+#ifdef IPA_RT_SUPPORT_COAL
+		if (IPACM_Wan::coalesce_enable_info[ext_prop->ext[0].mux_id].coalesce_tcp_enable)
+			rt_rule_entry->rule.coalesce = true;
+		else
+			rt_rule_entry->rule.coalesce = false;
+#endif
+		if (false == m_routing.AddRoutingRule(rt_rule))
+		{
+			IPACMERR("Routing rule addition failed!\n");
+			res = IPACM_FAILURE;
+			goto fail;
+		}
+		else if (rt_rule_entry->status)
+		{
+			IPACMERR("rsc tcp rt rule adding failed. Result=%d\n", rt_rule_entry->status);
+			res = rt_rule_entry->status;
+			goto fail;
+		}
+		dft_coalesce_rt_rule_hdl[0] = rt_rule_entry->rt_rule_hdl;
+		IPACMDBG_H("ipv4 wan iface rsc tcp rt-rule hdll=0x%x\n enable(%d)", dft_coalesce_rt_rule_hdl[0],
+			IPACM_Wan::coalesce_enable_info[ext_prop->ext[0].mux_id].coalesce_tcp_enable);
+
+		/* RSB UDP rule*/
+		rt_rule_entry->rule.attrib.u.v4.protocol = (uint8_t)IPACM_FIREWALL_IPPROTO_UDP;
+#ifdef IPA_RT_SUPPORT_COAL
+		if (IPACM_Wan::coalesce_enable_info[ext_prop->ext[0].mux_id].coalesce_tcp_enable)
+			rt_rule_entry->rule.coalesce = true;
+		else
+			rt_rule_entry->rule.coalesce = false;
+#endif
+		if (false == m_routing.AddRoutingRule(rt_rule))
+		{
+			IPACMERR("Routing rule addition failed!\n");
+			res = IPACM_FAILURE;
+			goto fail;
+		}
+		else if (rt_rule_entry->status)
+		{
+			IPACMERR("rsb udp rt rule adding failed. Result=%d\n", rt_rule_entry->status);
+			res = rt_rule_entry->status;
+			goto fail;
+		}
+		dft_coalesce_rt_rule_hdl[1] = rt_rule_entry->rt_rule_hdl;
+		IPACMDBG_H("ipv4 wan iface rsb udp rt-rule hdll=0x%x enable(%d)\n", dft_coalesce_rt_rule_hdl[1],
+			IPACM_Wan::coalesce_enable_info[ext_prop->ext[0].mux_id].coalesce_udp_enable);
+fail:
+	free(rt_rule);
+	}
+	/* v6 */
+	if (num_dft_rt_v6 !=0)
+	{
+		for (i = 0; i < 2*num_dft_rt_v6; i++)
+		{
+			/* delete v6 colasce rules */
+			if (m_routing.DeleteRoutingHdl(dft_coalesce_rt_rule_hdl[2*MAX_DEFAULT_v4_ROUTE_RULES+i], IPA_IP_v6) == false)
+			{
+				IPACMERR("Colasce Routing rule deletion failed!\n");
+				return  IPACM_FAILURE;
+			}
+			/* delete v6 default rules */
+			if (m_routing.DeleteRoutingHdl(dft_rt_rule_hdl[MAX_DEFAULT_v4_ROUTE_RULES+i], IPA_IP_v6) == false)
+			{
+				IPACMERR("Routing rule deletion failed!\n");
+				return  IPACM_FAILURE;
+			}
+		}
+
+		rt_rule = (struct ipa_ioc_add_rt_rule *)
+			calloc(1, sizeof(struct ipa_ioc_add_rt_rule) +
+				NUM_RULES * sizeof(struct ipa_rt_rule_add));
+		if (!rt_rule)
+		{
+			IPACMERR("Error Locate ipa_ioc_add_rt_rule memory...\n");
+			return IPACM_FAILURE;
+		}
+		rt_rule->commit = 1;
+		rt_rule->num_rules = NUM_RULES;
+		rt_rule->ip = IPA_IP_v6;
+
+		for (i = 0; i < num_dft_rt_v6; i++)
+		{
+			/* setup same rule for v6_wan table */
+			strlcpy(rt_rule->rt_tbl_name, IPACM_Iface::ipacmcfg->rt_tbl_v6.name, sizeof(rt_rule->rt_tbl_name));
+			rt_rule_entry = &rt_rule->rules[0];
+			rt_rule_entry->at_rear = false;
+			rt_rule_entry->rule.attrib.attrib_mask = IPA_FLT_DST_ADDR;
+			rt_rule_entry->rule.attrib.u.v6.dst_addr[0] = ipv6_addr[num_dft_rt_v6][0];
+			rt_rule_entry->rule.attrib.u.v6.dst_addr[1] = ipv6_addr[num_dft_rt_v6][1];
+			rt_rule_entry->rule.attrib.u.v6.dst_addr[2] = ipv6_addr[num_dft_rt_v6][2];
+			rt_rule_entry->rule.attrib.u.v6.dst_addr[3] = ipv6_addr[num_dft_rt_v6][3];
+			rt_rule_entry->rule.attrib.u.v6.dst_addr_mask[0] = 0xFFFFFFFF;
+			rt_rule_entry->rule.attrib.u.v6.dst_addr_mask[1] = 0xFFFFFFFF;
+			rt_rule_entry->rule.attrib.u.v6.dst_addr_mask[2] = 0xFFFFFFFF;
+			rt_rule_entry->rule.attrib.u.v6.dst_addr_mask[3] = 0xFFFFFFFF;
+#ifdef FEATURE_IPA_V3
+			rt_rule_entry->rule.hashable = false;
+#endif
+			strlcpy(hdr.name, tx_prop->tx[0].hdr_name, sizeof(hdr.name));
+			hdr.name[IPA_RESOURCE_NAME_MAX-1] = '\0';
+			if(m_header.GetHeaderHandle(&hdr) == false)
+			{
+				IPACMERR("Failed to get QMAP header.\n");
+				return IPACM_FAILURE;
+			}
+			rt_rule_entry->rule.hdr_hdl = hdr.hdl;
+			rt_rule_entry->rule.dst = IPA_CLIENT_APPS_WAN_CONS;
+			/* legacy default v4 rt-rule */
+#ifdef IPA_RT_SUPPORT_COAL
+			rt_rule_entry->rule.coalesce = false;
+#endif
+			/* legacy default v6 rt-rule */
+			if (false == m_routing.AddRoutingRule(rt_rule))
+			{
+				IPACMERR("Routing rule addition failed!\n");
+				res = IPACM_FAILURE;
+				goto fail2;
+			}
+			else if (rt_rule_entry->status)
+			{
+				IPACMERR("rt rule adding failed. Result=%d\n", rt_rule_entry->status);
+				res = rt_rule_entry->status;
+				goto fail2;
+			}
+			dft_rt_rule_hdl[MAX_DEFAULT_v4_ROUTE_RULES + 2*i] = rt_rule_entry->rt_rule_hdl;
+
+			/* setup same rule for v6_lan table*/
+			strlcpy(rt_rule->rt_tbl_name, IPACM_Iface::ipacmcfg->rt_tbl_wan_v6.name, sizeof(rt_rule->rt_tbl_name));
+			if (false == m_routing.AddRoutingRule(rt_rule))
+			{
+				IPACMERR("Routing rule addition failed!\n");
+				res = IPACM_FAILURE;
+				goto fail2;
+			}
+			else if (rt_rule_entry->status)
+			{
+				IPACMERR("rt rule adding failed. Result=%d\n", rt_rule_entry->status);
+				res = rt_rule_entry->status;
+				goto fail2;
+			}
+			dft_rt_rule_hdl[MAX_DEFAULT_v4_ROUTE_RULES + 2*i+1] = rt_rule_entry->rt_rule_hdl;
+			IPACMDBG_H("ipv6 wan iface rt-rule hdl=0x%x hdl=0x%x, entry: %d %d\n",
+				dft_rt_rule_hdl[MAX_DEFAULT_v4_ROUTE_RULES + 2*i],
+				dft_rt_rule_hdl[MAX_DEFAULT_v4_ROUTE_RULES + 2*i+1],
+				MAX_DEFAULT_v4_ROUTE_RULES + 2*i,
+				MAX_DEFAULT_v4_ROUTE_RULES + 2*i+1);
+			/* RSC TCP rule*/
+			rt_rule_entry->rule.attrib.attrib_mask |= IPA_FLT_NEXT_HDR;
+			rt_rule_entry->rule.attrib.u.v6.next_hdr = (uint8_t)IPACM_FIREWALL_IPPROTO_TCP;
+#ifdef IPA_RT_SUPPORT_COAL
+			if (IPACM_Wan::coalesce_enable_info[ext_prop->ext[0].mux_id].coalesce_tcp_enable)
+				rt_rule_entry->rule.coalesce = true;
+			else
+				rt_rule_entry->rule.coalesce = false;
+#endif
+			if (false == m_routing.AddRoutingRule(rt_rule))
+			{
+				IPACMERR("Routing rule addition failed!\n");
+				res = IPACM_FAILURE;
+				goto fail2;
+			}
+			else if (rt_rule_entry->status)
+			{
+				IPACMERR("rsc tcp rt rule adding failed. Result=%d\n", rt_rule_entry->status);
+				res = rt_rule_entry->status;
+				goto fail2;
+			}
+			dft_coalesce_rt_rule_hdl[2*MAX_DEFAULT_v4_ROUTE_RULES + 2*i] = rt_rule_entry->rt_rule_hdl;
+			IPACMDBG_H("ipv6 wan iface rsc tcp rt-rule hdll=0x%x\n enable(%d)", dft_coalesce_rt_rule_hdl[2*MAX_DEFAULT_v4_ROUTE_RULES + 2*i],
+				IPACM_Wan::coalesce_enable_info[ext_prop->ext[0].mux_id].coalesce_tcp_enable);
+			/* RSB UDP rule*/
+			rt_rule_entry->rule.attrib.u.v6.next_hdr = (uint8_t)IPACM_FIREWALL_IPPROTO_UDP;
+#ifdef IPA_RT_SUPPORT_COAL
+			if (IPACM_Wan::coalesce_enable_info[ext_prop->ext[0].mux_id].coalesce_udp_enable)
+				rt_rule_entry->rule.coalesce = true;
+			else
+				rt_rule_entry->rule.coalesce = false;
+#endif
+			if (false == m_routing.AddRoutingRule(rt_rule))
+			{
+				IPACMERR("Routing rule addition failed!\n");
+				res = IPACM_FAILURE;
+				goto fail2;
+			}
+			else if (rt_rule_entry->status)
+			{
+				IPACMERR("rsb udp rt rule adding failed. Result=%d\n", rt_rule_entry->status);
+				res = rt_rule_entry->status;
+				goto fail2;
+			}
+			dft_coalesce_rt_rule_hdl[2*MAX_DEFAULT_v4_ROUTE_RULES + 2*i+1] = rt_rule_entry->rt_rule_hdl;
+			IPACMDBG_H("ipv6 wan iface rsb udp rt-rule hdll=0x%x\n enable(%d)", dft_coalesce_rt_rule_hdl[2*MAX_DEFAULT_v4_ROUTE_RULES + 2*i+1],
+				IPACM_Wan::coalesce_enable_info[ext_prop->ext[0].mux_id].coalesce_udp_enable);
+		}
+fail2:
+	free(rt_rule);
+	}
+	return res;
+}