diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index bc95cf1..a0d219b 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -11,7 +11,8 @@ include_directories(${PROJECT_SOURCE_DIR}/include/)
 
 LINK_DIRECTORIES(/opt/MESA/lib)
 
-add_definitions(-D_BSD_SOURCE -D_BSD_SOURCE -D__BSD_SOURCE -D__FAVOR_BSD -DHAVE_NET_ETHERNET_H)
+#add_definitions(-D_BSD_SOURCE -D_BSD_SOURCE -D__BSD_SOURCE -D__FAVOR_BSD -DHAVE_NET_ETHERNET_H)
+add_definitions(-D_DEFAULT_SOURCE -D__FAVOR_BSD -DHAVE_NET_ETHERNET_H)
 add_definitions(-DSAPP_V4=1)
 
 add_definitions(-fPIC)
diff --git a/src/MESA_jump_layer.cpp b/src/MESA_jump_layer.cpp
index c24a4f0..958ec20 100644
--- a/src/MESA_jump_layer.cpp
+++ b/src/MESA_jump_layer.cpp
@@ -290,9 +290,9 @@ static int gtp_jump_to_layer(const char *raw_data,  int raw_layer_type, int expe
 
 	next_ip_layer_hdr = (unsigned char *)raw_data + gtp_hdr_len;
 
-	if((*next_ip_layer_hdr & 0x40) == 0x40){
+	if((*next_ip_layer_hdr & 0xF0) == 0x40){
 		skip_len = ipv4_jump_to_layer((char *)next_ip_layer_hdr, __ADDR_TYPE_IP_PAIR_V4, expect_layer_type);
-	}else if((*next_ip_layer_hdr & 0x60) == 0x60){
+	}else if((*next_ip_layer_hdr & 0xF0) == 0x60){
 		skip_len = ipv6_jump_to_layer((char *)next_ip_layer_hdr, __ADDR_TYPE_IP_PAIR_V6, expect_layer_type);
 	}else{
 		snprintf(_g_mesa_jump_layer_last_error, PIPE_BUF, "gtp_jump_to_layer() error, unsupport type in GTP, 0x%x!", (*next_ip_layer_hdr));
@@ -1427,8 +1427,23 @@ const void *MESA_jump_layer_greedy(const void *raw_data, int raw_layer_type, int
 
 			case __ADDR_TYPE_IP_PAIR_V6:
 			{
-				//TODO2,
-				goto done;		
+				const struct mesa_ip6_hdr *ip6hdr = (const struct mesa_ip6_hdr *)expect_layer;		
+				if(IPPROTO_UDP == ip6hdr->ip6_nxt_hdr){
+					new_next_layer_data = (char *)expect_layer + sizeof(struct mesa_ip6_hdr);
+					new_raw_layer_type = ADDR_TYPE_UDP; /* IP²ã¼ÌÐøÏòÏÂÒ»²ãÆ«ÒÆ */
+				}else if(IPPROTO_GRE == ip6hdr->ip6_nxt_hdr){
+					new_next_layer_data = (char *)expect_layer + sizeof(struct mesa_ip6_hdr);
+					new_raw_layer_type = ADDR_TYPE_GRE; /* GRE */					
+				}else if(IPPROTO_IPIP == ip6hdr->ip6_nxt_hdr){
+					new_next_layer_data = (char *)expect_layer + sizeof(struct mesa_ip6_hdr);
+					new_raw_layer_type = ADDR_TYPE_IPV4;  			
+				}else if(IPPROTO_IPIP == ip6hdr->ip6_nxt_hdr){
+					new_next_layer_data = (char *)expect_layer + sizeof(struct mesa_ip6_hdr);
+					new_raw_layer_type = ADDR_TYPE_IPV6;  				
+				}else{
+					//TODO 2, IPIP, L2TPv3
+					goto done;
+				}
 			}
 			break;
 
@@ -1476,7 +1491,7 @@ const char *MESA_jump_layer_ipv4_ntop(const struct ip *ip4_hdr, char *out_buf, i
 		inner_thdr = (struct mesa_tcp_hdr *)((char *)ip4_hdr + ip4_hdr->ip_hl*4);
 		sport = ntohs(inner_thdr->th_sport);
 		dport = ntohs(inner_thdr->th_dport);
-	}else if(IPPROTO_UDP){
+	}else if(IPPROTO_UDP == inner_ip_proto){
 		inner_uhdr = (struct mesa_udp_hdr *)((char *)ip4_hdr + ip4_hdr->ip_hl*4);
 		sport = ntohs(inner_uhdr->uh_sport);
 		dport = ntohs(inner_uhdr->uh_dport);				
@@ -1509,7 +1524,7 @@ const char *MESA_jump_layer_ipv6_ntop(const struct ip6_hdr *ip6_hdr, char *out_b
 		inner_thdr = (struct tcphdr *)((char *)ip6_hdr + sizeof(struct ip6_hdr));
 		sport = inner_thdr->source;
 		dport = inner_thdr->dest;				
-	}else if(IPPROTO_UDP){
+	}else if(IPPROTO_UDP== inner_ip_proto){
 		inner_uhdr = (struct udphdr *)((char *)ip6_hdr + sizeof(struct ip6_hdr));
 		sport = inner_uhdr->source;
 		dport = inner_uhdr->dest;					
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index ec4336b..2473ffc 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -5,7 +5,8 @@ include_directories(${MESA_SDK_PREFIX}/include)
 include_directories(${MESA_SDK_PREFIX}/include/MESA)
 
 
-add_definitions(-D_BSD_SOURCE -D_BSD_SOURCE -D__BSD_SOURCE -D__FAVOR_BSD -DHAVE_NET_ETHERNET_H)
+# add_definitions(-D_BSD_SOURCE -D_BSD_SOURCE -D__BSD_SOURCE -D__FAVOR_BSD -DHAVE_NET_ETHERNET_H)
+add_definitions(-D_DEFAULT_SOURCE -D__FAVOR_BSD -DHAVE_NET_ETHERNET_H)
 add_definitions(-fPIC -std=c++11)
 LINK_DIRECTORIES(/opt/MESA/lib)
 LINK_DIRECTORIES(${CMAKE_BINARY_DIR}/src)
diff --git a/test/gtest_jump_layer.cpp b/test/gtest_jump_layer.cpp
index bf9103f..51edd4b 100644
--- a/test/gtest_jump_layer.cpp
+++ b/test/gtest_jump_layer.cpp
@@ -143,7 +143,7 @@ static int jump_check_udp_pkt(const struct udphdr *uhdr, unsigned short expect_u
 	return 0;
 }
 
-static int jump_check_vlan_pkt(const void *vlan_hdr, unsigned int expect_vlan_hex_data)
+int jump_check_vlan_pkt(const void *vlan_hdr, unsigned int expect_vlan_hex_data)
 {
 	if(memcmp(vlan_hdr, &expect_vlan_hex_data, sizeof(int)) != 0){
 		printf("\033[1;31;40mMESA_net_jump_to_layer(): vlan header error!\033[0m\n");