diff --git a/ipacm/inc/IPACM_Xml.h b/ipacm/inc/IPACM_Xml.h
index 06be0a9..f645ae1 100644
--- a/ipacm/inc/IPACM_Xml.h
+++ b/ipacm/inc/IPACM_Xml.h
@@ -40,10 +40,6 @@
 #ifndef IPACM_XML_H
 #define IPACM_XML_H
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 #include <linux/msm_ipa.h>
 #include "IPACM_Defs.h"
 #include <stdio.h>
@@ -53,6 +49,10 @@
 #include <stdint.h>
 #include <libxml/parser.h>
 #include <libxml/tree.h>
+#ifdef __cplusplus
+extern "C" {
+#endif
+
   
 #define IPACM_ASSERT(a)                                     \
 if (!(a)) {                                                 \
diff --git a/ipacm/src/Android.mk b/ipacm/src/Android.mk
index 64ee3ec..c52a8a4 100644
--- a/ipacm/src/Android.mk
+++ b/ipacm/src/Android.mk
@@ -3,7 +3,6 @@
 ifneq ($(call is-board-platform-in-list,$(BOARD_PLATFORM_LIST)),true)
 ifneq (,$(filter $(QCOM_BOARD_PLATFORMS),$(TARGET_BOARD_PLATFORM)))
 ifneq (, $(filter aarch64 arm arm64, $(TARGET_ARCH)))
-ifneq ($(TARGET_USES_AOSP),true)
 
 LOCAL_PATH := $(call my-dir)
 
@@ -18,7 +17,6 @@
 LOCAL_C_INCLUDES += external/icu4c/common
 endif
 LOCAL_C_INCLUDES += external/dhcpcd
-LOCAL_C_INCLUDES += bionic/libstdc++/include
 LOCAL_C_INCLUDES += external/libxml2/include
 LOCAL_C_INCLUDES += external/libnetfilter_conntrack/include
 LOCAL_C_INCLUDES += external/libnfnetlink/include
@@ -63,7 +61,6 @@
 LOCAL_SHARED_LIBRARIES += libxml2
 LOCAL_SHARED_LIBRARIES += libnfnetlink
 LOCAL_SHARED_LIBRARIES += libnetfilter_conntrack
-LOCAL_SHARED_LIBRARIES += libicuuc
 LOCAL_SHARED_LIBRARIES += libdhcpcd
 include $(BUILD_EXECUTABLE)
 
@@ -90,7 +87,6 @@
 LOCAL_MODULE_OWNER := ipacm
 include $(BUILD_PREBUILT)
 
-endif # not (TARGET_USES_AOSP)
 endif # $(TARGET_ARCH)
 endif
 endif
\ No newline at end of file
diff --git a/ipacm/src/IPACM_Wan.cpp b/ipacm/src/IPACM_Wan.cpp
index 0aec857..6381826 100644
--- a/ipacm/src/IPACM_Wan.cpp
+++ b/ipacm/src/IPACM_Wan.cpp
@@ -296,7 +296,8 @@
 	    	          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);
 
-        if (num_dft_rt_v6 == 0)
+		/* add default filtering rules when wan-iface get global v6-prefix */
+        if (num_dft_rt_v6 == 1)
 	    {
 			if(m_is_sta_mode == Q6_WAN)
 			{