diff --git a/code/trunk/sys_nicmonitor/mnic.c b/code/trunk/sys_nicmonitor/mnic.c
index fd4d3da..b4f4d6c 100644
--- a/code/trunk/sys_nicmonitor/mnic.c
+++ b/code/trunk/sys_nicmonitor/mnic.c
@@ -17,7 +17,7 @@
 #define IPLEN 16
 #define CONF_FILE "/conf/nic/sys_netcard_conf.txt"
 
-#define MNIC_VERSION "1.5"
+#define MNIC_VERSION "1.6"
 
 #define NIC_UNKNOWN 0
 #define NIC_DOWN 1
@@ -622,8 +622,10 @@ static char *parse_str(char **s)
 
 int ping_gw(char *devname)
 {
+ 	FILE *fp;
 	int i, ret = -1, j, k;
-	char buf[64];
+	char buf[128];
+	char getbuf[64];
 
 	i = find_nic_config(devname);
 	if( i == -1 )
@@ -634,20 +636,31 @@ int ping_gw(char *devname)
 
 	for(k=0; k<conf.pingnum; ++k){
 		for(j=0; j<conf.nic[i].gw_num; ++j){
-			snprintf(buf, sizeof(buf), "ping -c 1 -w %d %s > /dev/null 2>&1", conf.pinglap,conf.nic[i].ping_ip[j]);
-			ret=system(buf);
-#if 0
-			if (WIFSIGNALED(ret) &&
-				(WTERMSIG(ret) == SIGINT || WTERMSIG(ret) == SIGQUIT))
-					exit(0);
-#endif
-			if(ret == 0)
-				return 0;
+			//snprintf(buf, sizeof(buf), "ping -c 1 -w %d %s > /dev/null 2>&1", conf.pinglap,conf.nic[i].ping_ip[j]);
+
+                    snprintf(buf,sizeof(buf),"ping -c 1 -w %d %s|grep received|awk -F, '{print $2}'|awk '{print $1}'", conf.pinglap,conf.nic[i].ping_ip[j]);
+                    if((fp = popen(buf,"r")) == NULL)
+                    {
+                        perror("popen");
+                        return 0;
+                    }else{
+                        fgets(getbuf,sizeof(getbuf),fp);
+                        if(strncmp(getbuf,"1",1) == 0)
+                        {
+                            pclose(fp);
+                            return 0;
+                        }else{
+                            pclose(fp);
+                            return -1;
+                        }
+                    }
+                    pclose(fp);
+                    return 0;
 
 		}
 	}
 
-	return -1;
+    return 0;
 }
 
 static void *check_inc_switch(void *ptr)