diff --git a/html/config.js b/html/config.js
index 92a07e5..2d48021 100644
--- a/html/config.js
+++ b/html/config.js
@@ -1,41 +1,55 @@
 var configInterval = Number();
-var configuration = {};
+var configuration = [];
+const conf_cmds = [
+  /ip\s+(\d{1,3}\.){3}\d{1,3}/, /gw\s+(\d{1,3}\.){3}\d{1,3}/, /netmask\s+(\d{1,3}\.){3}\d{1,3}/,
+  /eee(\s+\d)?\s+(on|off)/, /mirror(\s+(\d|10))(\s+(\d|10)(t|r)?)+/, /vlan\s+(\d{1,4})(\s+(\d|10)(t|u)?)+/
+];
+const conf_overwrite = [
+  /ip/, /gw/, /netmask/, /eee\s+\w+/, /eee(\s+\w)/, /mirror/, /vlan\s+(\d{1,4})/
+];
 
-function parseConf(c){
+function parseConf(s){
   var a = s.split(/\r\n|\n/);
     for (var l = 0; l < a.length; l++) {
+      if (!a[l].length || a[l] == "\n" || a[l] == "\r\n")
+        continue;
       console.log(l + ' --> ' + a[l]);
+      var ignore = true;
+      for (const x of conf_cmds)
+        if (x.test(a[l])) ignore = false;
+      if (ignore) continue;
+      for (const x of conf_overwrite) {
+        if (x.test(a[l])) {
+          console.log("Match ", x, " to ", a[l]);
+          m = a[l].match(x);
+          console.log("Starts with ", m[0]);
+          configuration = configuration.filter(item => !(item.startsWith(m[0])));
+        }
+      }
+      configuration.push(a[l]);
     }
+    console.log("Configuration now:");
+    for (const x of configuration) { console.log(x); }
 }
 
-function fetchConfig() {
-  var xhttp = new XMLHttpRequest();
-  xhttp.onreadystatechange = function() {
-    if (this.readyState == 4 && this.status == 200) {
-      s = xhttp.responseText;
-      console.log("CONFIG: ", s);
-      parseConf(s);
-      clearInterval(configInterval);
-    }
+async function fetchConfig() {
+  try {
+    const response = await fetch('/config');
+    console.log("CONFIG: ", response);
+    const t = await response.text();
+    return t;
+  } catch(err) {
+    console.error("Error: ", err);
   }
-  xhttp.open("GET", `/config`, true);
-  xhttp.send();
 }
 
-function fetchCmdLog() {
-  var xhttp = new XMLHttpRequest();
-  xhttp.onreadystatechange = function() {
-    if (this.readyState == 4 && this.status == 200) {
-      s = xhttp.responseText;
-      console.log("CMD-Log: ", s);
-      parseConf(s);
-      clearInterval(configInterval);
-    }
+async function fetchCmdLog() {
+  try {
+    const response = await fetch('/cmd_log');
+    console.log("CMD-Log: ", response);
+    const t = await response.text();
+    return t;
+  } catch(error) {
+    console.error("Error: ", err);
   }
-  xhttp.open("GET", `/cmd_log`, true);
-  xhttp.send();
 }
-
-window.addEventListener("load", function() {
-  configInterval = setInterval(fetchConfig, 1000);
-});
diff --git a/html/system.html b/html/system.html
index 728b300..57e6a74 100644
--- a/html/system.html
+++ b/html/system.html
@@ -14,8 +14,8 @@
       <div class="rcol"> <input id="ip" class="ip" type="text" minlength="7" maxlength="15" size="15"/></div>
     </div>
     <div class="row">
-      <div class="lcol"> <label for="nm">Netmask:</label></div>
-      <div class="rcol"><input id="nm" class="ip" type="text" minlength="7" maxlength="15" size="15"/></div>
+      <div class="lcol"> <label for="netmask">Netmask:</label></div>
+      <div class="rcol"><input id="netmask" class="ip" type="text" minlength="7" maxlength="15" size="15"/></div>
     </div>
     <div class="row">
       <div class="lcol"> <label for="gw">Gateway:</label></div>
diff --git a/html/system.js b/html/system.js
index a368f9f..50beec5 100644
--- a/html/system.js
+++ b/html/system.js
@@ -1,5 +1,5 @@
 var systemInterval = Number();
-const ips = ["ip", "nm", "gw"];
+const ips = ["ip", "netmask", "gw"];
 
 function checkIp(ip) {
   const ipv4 = /^(\d{1,3}\.){3}\d{1,3}$/;
@@ -27,14 +27,14 @@ async function ipSub() {
   }
 }
 
-async function flashSave() {
-  fetchConfig();
-  fetchCmdLog();
-  return;
+async function sendConfig(c) {
+    const form = new FormData();
+  form.append("MAX_FILE_SIZE", "4096");
+  form.append("configuration", new Blob([c], {type: "application/octet-stream"}));
   try {
-    const response = await fetch('/save', {
+    const response = await fetch('/config', {
       method: 'POST',
-      body: cmd
+      body: form
     });
     console.log('Completed!', response);
   } catch(err) {
@@ -42,6 +42,19 @@ async function flashSave() {
   }
 }
 
+async function flashSave() {
+  fetchConfig().then((s) => {
+    parseConf(s);
+    fetchCmdLog().then((s) => {
+      parseConf(s);
+      var body = "";
+      for (const x of configuration) { body = body + x + "\n"; }
+      console.log("CONFIGURATION to save: ", body);
+      sendConfig(body);
+    });
+  });
+}
+
 function fetchIP() {
   var xhttp = new XMLHttpRequest();
   xhttp.onreadystatechange = function() {
@@ -49,7 +62,7 @@ function fetchIP() {
       const s = JSON.parse(xhttp.responseText);
       console.log("IP: ", s);
       document.getElementById("ip").value=s.ip_address;
-      document.getElementById("nm").value=s.ip_netmask;
+      document.getElementById("netmask").value=s.ip_netmask;
       document.getElementById("gw").value=s.ip_gateway;
       clearInterval(systemInterval);
     }