diff --git a/conf/sce.conf b/conf/sce.conf
index df26381..50ff4e7 100644
--- a/conf/sce.conf
+++ b/conf/sce.conf
@@ -75,6 +75,8 @@ telegraf_listen_port=8300
 
 [bfdd]
 enable=1
+# use default_gw_mac when enable = 0
+default_gw_mac=aa:aa:aa:aa:aa:aa
 path=/run/run/frr/bfdd.vty
 device=eth0
 local_address=127.0.0.1
diff --git a/platform/src/health_check.cpp b/platform/src/health_check.cpp
index 474c311..f283e62 100644
--- a/platform/src/health_check.cpp
+++ b/platform/src/health_check.cpp
@@ -314,6 +314,7 @@ static int send_icmp_cycle()
 
 void health_check_session_init(const char *profile)
 {
+    char default_gw_mac_str[32] = { 0 };
     memset(&g_handle, 0, sizeof(g_handle));
     pthread_rwlock_init(&g_handle.rwlock, NULL);
     memset(&g_handle_bfd, 0, sizeof(g_handle_bfd));
@@ -326,9 +327,11 @@ void health_check_session_init(const char *profile)
     MESA_load_profile_string_def(profile, "bfdd", "device", hc_dev_name, sizeof(hc_dev_name), "eth0");
     MESA_load_profile_string_def(profile, "bfdd", "local_address", local_address, sizeof(local_address), "127.0.0.1");
     MESA_load_profile_string_def(profile, "bfdd", "gateway", gateway_address, sizeof(gateway_address), "127.0.0.1");
+    MESA_load_profile_string_def(profile, "bfdd", "default_gw_mac", default_gw_mac_str, sizeof(default_gw_mac_str), "aa:aa:aa:aa:aa:aa");
 
     if (enable == 0)
     {
+        str_to_mac(default_gw_mac_str, default_gw_mac);
         return;
     }
 
@@ -721,6 +724,7 @@ int health_check_session_get_mac(uint64_t session_id, u_char mac_buff[])
 
     if (enable == 0)
     {
+        memcpy(mac_buff, default_gw_mac, ETH_ALEN);
         return 0;
     }
     pthread_rwlock_rdlock(&g_handle.rwlock);