diff --git a/mcast-pa/src/mcast-pa.c b/mcast-pa/src/mcast-pa.c
index 33a1d61029784d2bf59fb152686248ce63ded7bf..2c1a391c28917066d55de87aa87efb5096514355 100644
--- a/mcast-pa/src/mcast-pa.c
+++ b/mcast-pa/src/mcast-pa.c
@@ -679,11 +679,17 @@ mcg_br_entry_show(FILE * f, struct mcg_br_mdb_entry_t *mcge)
 	if (f == NULL)
 		return;
 	if (inet_ntop(AF_INET, &mcge->e.addr.u.ip4, abuf, sizeof (abuf))) {
-		fprintf(f, "brdev %s port %s grp %s \n", (char *) ll_index_to_name(mcge->br_ifindex),
-			(char *) ll_index_to_name(mcge->e.ifindex), abuf);
+		fprintf(f, "brdev %s port %s grp %s join:%d \n", (char *) ll_index_to_name(mcge->br_ifindex),
+			(char *) ll_index_to_name(mcge->e.ifindex), abuf,mcge->joined);
+		fprintf(f,"mac address:%02x-%02x-%02x-%02x-%02x-%02x\n",mcge->e.src_addr.eth_addr[0],mcge->e.src_addr.eth_addr[1],mcge->e.src_addr.eth_addr[2],
+			mcge->e.src_addr.eth_addr[3],mcge->e.src_addr.eth_addr[4],mcge->e.src_addr.eth_addr[5]);
 	}
 	return;
 }
+static int is_zero_mac(uint8_t *mac)
+{
+	return !(mac[0] | mac[1] | mac[2] | mac[3] | mac[4] | mac[5]);
+}
 
 /**
  * @brief compare bridge entries
@@ -1704,6 +1710,10 @@ cache_mdb_entry(struct nlmsghdr *n, int ifindex, struct br_mdb_entry *e)
 				syslog(LOG_NOTICE, "RTM_NEWMDB dev %s port %s grp %s srcmac %s\n",
 				       (char *) ll_index_to_name(ifindex), (char *) ll_index_to_name(e->ifindex), abuf,
 				       cache_mdb_entry_srcmac(e));
+				if(is_zero_mac(e->src_addr.eth_addr))
+				{
+					return;
+				}
 
 				head = mcg_br_entry_head_get(e);
 				if (head == NULL) {