diff --git a/EduNetworkBuilder/Resources/Level4_InternelSubnetting.enbx b/EduNetworkBuilder/Resources/Level4_InternelSubnetting.enbx
index 3117c0d..e0091b0 100644
--- a/EduNetworkBuilder/Resources/Level4_InternelSubnetting.enbx
+++ b/EduNetworkBuilder/Resources/Level4_InternelSubnetting.enbx
@@ -2,8 +2,8 @@
 <EduNetworkBuilder>
   <!--This is a network file for EduNetworkBuilder.-->
   <Network>
-    <message>Sometimes it is good to subnet within your network.  Connect up PC5 to net_switch0 and give it an IP address that is on the same subnet as pc2.  To make sure it works, ping pc4 from pc5.</message>
-    <title>Internal Subnets</title>
+    <en_message>Sometimes it is good to subnet within your network.  Connect up PC5 to net_switch0 and give it an IP address that is on the same subnet as pc2.  To make sure it works, ping pc4 from pc5.</en_message>
+    <en_title>Internal Subnets</en_title>
     <height>1024</height>
     <width>1024</width>
     <itemsize>100</itemsize>
@@ -38,6 +38,7 @@
         <nictype>lo</nictype>
         <uniqueidentifier>101</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>lo0</nicname>
           <myip>
@@ -60,6 +61,7 @@
         <nictype>wan</nictype>
         <uniqueidentifier>104</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>wan0</nicname>
           <myip>
@@ -82,6 +84,7 @@
         <nictype>eth</nictype>
         <uniqueidentifier>102</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>eth0</nicname>
           <myip>
@@ -104,6 +107,7 @@
         <nictype>eth</nictype>
         <uniqueidentifier>103</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>eth1</nicname>
           <myip>
@@ -159,6 +163,7 @@
         <nictype>lo</nictype>
         <uniqueidentifier>140</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>lo0</nicname>
           <myip>
@@ -181,6 +186,7 @@
         <nictype>eth</nictype>
         <uniqueidentifier>141</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>eth0</nicname>
           <myip>
@@ -218,6 +224,7 @@
         <nictype>lo</nictype>
         <uniqueidentifier>149</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>lo0</nicname>
           <myip>
@@ -240,6 +247,7 @@
         <nictype>eth</nictype>
         <uniqueidentifier>150</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>eth0</nicname>
           <myip>
@@ -277,6 +285,7 @@
         <nictype>lo</nictype>
         <uniqueidentifier>171</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>lo0</nicname>
           <myip>
@@ -299,6 +308,7 @@
         <nictype>eth</nictype>
         <uniqueidentifier>172</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>eth0</nicname>
           <myip>
@@ -336,6 +346,7 @@
         <nictype>lo</nictype>
         <uniqueidentifier>174</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>lo0</nicname>
           <myip>
@@ -358,6 +369,7 @@
         <nictype>eth</nictype>
         <uniqueidentifier>175</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>eth0</nicname>
           <myip>
@@ -395,6 +407,7 @@
         <nictype>lo</nictype>
         <uniqueidentifier>114</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>lo0</nicname>
           <myip>
@@ -417,6 +430,7 @@
         <nictype>management_interface</nictype>
         <uniqueidentifier>115</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>management_interface0</nicname>
           <myip>
@@ -439,6 +453,7 @@
         <nictype>port</nictype>
         <uniqueidentifier>116</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>port1</nicname>
           <myip>
@@ -461,6 +476,7 @@
         <nictype>port</nictype>
         <uniqueidentifier>117</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>port2</nicname>
           <myip>
@@ -483,6 +499,7 @@
         <nictype>port</nictype>
         <uniqueidentifier>118</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>port3</nicname>
           <myip>
@@ -505,6 +522,7 @@
         <nictype>port</nictype>
         <uniqueidentifier>119</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>port4</nicname>
           <myip>
@@ -527,6 +545,7 @@
         <nictype>port</nictype>
         <uniqueidentifier>120</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>port5</nicname>
           <myip>
@@ -549,6 +568,7 @@
         <nictype>port</nictype>
         <uniqueidentifier>121</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>port6</nicname>
           <myip>
@@ -571,6 +591,7 @@
         <nictype>port</nictype>
         <uniqueidentifier>122</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>port7</nicname>
           <myip>
@@ -608,6 +629,7 @@
         <nictype>lo</nictype>
         <uniqueidentifier>124</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>lo0</nicname>
           <myip>
@@ -630,6 +652,7 @@
         <nictype>management_interface</nictype>
         <uniqueidentifier>125</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>management_interface0</nicname>
           <myip>
@@ -652,6 +675,7 @@
         <nictype>port</nictype>
         <uniqueidentifier>126</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>port1</nicname>
           <myip>
@@ -674,6 +698,7 @@
         <nictype>port</nictype>
         <uniqueidentifier>127</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>port2</nicname>
           <myip>
@@ -696,6 +721,7 @@
         <nictype>port</nictype>
         <uniqueidentifier>128</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>port3</nicname>
           <myip>
@@ -718,6 +744,7 @@
         <nictype>port</nictype>
         <uniqueidentifier>129</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>port4</nicname>
           <myip>
@@ -740,6 +767,7 @@
         <nictype>port</nictype>
         <uniqueidentifier>130</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>port5</nicname>
           <myip>
@@ -762,6 +790,7 @@
         <nictype>port</nictype>
         <uniqueidentifier>131</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>port6</nicname>
           <myip>
@@ -784,6 +813,7 @@
         <nictype>port</nictype>
         <uniqueidentifier>132</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>port7</nicname>
           <myip>
@@ -821,6 +851,7 @@
         <nictype>lo</nictype>
         <uniqueidentifier>134</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>lo0</nicname>
           <myip>
@@ -843,6 +874,7 @@
         <nictype>eth</nictype>
         <uniqueidentifier>135</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>eth0</nicname>
           <myip>
@@ -880,6 +912,7 @@
         <nictype>lo</nictype>
         <uniqueidentifier>137</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>lo0</nicname>
           <myip>
@@ -902,6 +935,7 @@
         <nictype>eth</nictype>
         <uniqueidentifier>138</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>eth0</nicname>
           <myip>
@@ -939,6 +973,7 @@
         <nictype>lo</nictype>
         <uniqueidentifier>143</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>lo0</nicname>
           <myip>
@@ -961,6 +996,7 @@
         <nictype>eth</nictype>
         <uniqueidentifier>144</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>eth0</nicname>
           <myip>
@@ -998,6 +1034,7 @@
         <nictype>lo</nictype>
         <uniqueidentifier>146</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>lo0</nicname>
           <myip>
@@ -1020,6 +1057,7 @@
         <nictype>eth</nictype>
         <uniqueidentifier>147</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>eth0</nicname>
           <myip>
@@ -1057,6 +1095,7 @@
         <nictype>lo</nictype>
         <uniqueidentifier>162</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>lo0</nicname>
           <myip>
@@ -1079,6 +1118,7 @@
         <nictype>eth</nictype>
         <uniqueidentifier>163</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>eth0</nicname>
           <myip>
@@ -1116,6 +1156,7 @@
         <nictype>lo</nictype>
         <uniqueidentifier>106</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>lo0</nicname>
           <myip>
@@ -1138,6 +1179,7 @@
         <nictype>eth</nictype>
         <uniqueidentifier>107</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>eth0</nicname>
           <myip>
@@ -1160,6 +1202,7 @@
         <nictype>eth</nictype>
         <uniqueidentifier>108</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>eth1</nicname>
           <myip>
@@ -1212,6 +1255,7 @@
         <nictype>lo</nictype>
         <uniqueidentifier>110</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>lo0</nicname>
           <myip>
@@ -1234,6 +1278,7 @@
         <nictype>eth</nictype>
         <uniqueidentifier>111</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>eth0</nicname>
           <myip>
@@ -1265,6 +1310,7 @@
         <nictype>eth</nictype>
         <uniqueidentifier>112</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>eth1</nicname>
           <myip>
@@ -1302,6 +1348,7 @@
         <nictype>lo</nictype>
         <uniqueidentifier>165</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>lo0</nicname>
           <myip>
@@ -1324,6 +1371,7 @@
         <nictype>eth</nictype>
         <uniqueidentifier>166</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>eth0</nicname>
           <myip>
@@ -1346,6 +1394,7 @@
         <nictype>eth</nictype>
         <uniqueidentifier>167</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
+        <encryptionkey />
         <interface>
           <nicname>eth1</nicname>
           <myip>
@@ -1383,7 +1432,6 @@
         <nictype>lo</nictype>
         <uniqueidentifier>179</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
-        <encryptionkey />
         <interface>
           <nicname>lo0</nicname>
           <myip>
@@ -1406,7 +1454,6 @@
         <nictype>eth</nictype>
         <uniqueidentifier>180</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
-        <encryptionkey />
         <interface>
           <nicname>eth0</nicname>
           <myip>
@@ -1432,6 +1479,7 @@
         <nicname>eth0</nicname>
       </DstNic>
       <hostname />
+      <linktype>normal</linktype>
       <uniqueidentifier>151</uniqueidentifier>
     </link>
     <link>
@@ -1448,6 +1496,7 @@
         <nicname>eth0</nicname>
       </DstNic>
       <hostname />
+      <linktype>normal</linktype>
       <uniqueidentifier>169</uniqueidentifier>
     </link>
     <link>
@@ -1464,6 +1513,7 @@
         <nicname>port3</nicname>
       </DstNic>
       <hostname />
+      <linktype>normal</linktype>
       <uniqueidentifier>154</uniqueidentifier>
     </link>
     <link>
@@ -1480,6 +1530,7 @@
         <nicname>port2</nicname>
       </DstNic>
       <hostname />
+      <linktype>normal</linktype>
       <uniqueidentifier>157</uniqueidentifier>
     </link>
     <link>
@@ -1496,6 +1547,7 @@
         <nicname>port2</nicname>
       </DstNic>
       <hostname />
+      <linktype>normal</linktype>
       <uniqueidentifier>153</uniqueidentifier>
     </link>
     <link>
@@ -1512,6 +1564,7 @@
         <nicname>port1</nicname>
       </DstNic>
       <hostname />
+      <linktype>normal</linktype>
       <uniqueidentifier>152</uniqueidentifier>
     </link>
     <link>
@@ -1528,6 +1581,7 @@
         <nicname>port5</nicname>
       </DstNic>
       <hostname />
+      <linktype>normal</linktype>
       <uniqueidentifier>176</uniqueidentifier>
     </link>
     <link>
@@ -1544,6 +1598,7 @@
         <nicname>eth0</nicname>
       </DstNic>
       <hostname />
+      <linktype>normal</linktype>
       <uniqueidentifier>168</uniqueidentifier>
     </link>
     <link>
@@ -1560,6 +1615,7 @@
         <nicname>port4</nicname>
       </DstNic>
       <hostname />
+      <linktype>normal</linktype>
       <uniqueidentifier>155</uniqueidentifier>
     </link>
     <link>
@@ -1576,6 +1632,7 @@
         <nicname>port1</nicname>
       </DstNic>
       <hostname />
+      <linktype>normal</linktype>
       <uniqueidentifier>156</uniqueidentifier>
     </link>
     <link>
@@ -1592,6 +1649,7 @@
         <nicname>port3</nicname>
       </DstNic>
       <hostname />
+      <linktype>normal</linktype>
       <uniqueidentifier>158</uniqueidentifier>
     </link>
     <link>
@@ -1608,6 +1666,7 @@
         <nicname>eth1</nicname>
       </DstNic>
       <hostname />
+      <linktype>normal</linktype>
       <uniqueidentifier>160</uniqueidentifier>
     </link>
     <link>
@@ -1624,6 +1683,7 @@
         <nicname>eth0</nicname>
       </DstNic>
       <hostname />
+      <linktype>normal</linktype>
       <uniqueidentifier>159</uniqueidentifier>
     </link>
     <link>
@@ -1640,6 +1700,7 @@
         <nicname>port5</nicname>
       </DstNic>
       <hostname />
+      <linktype>normal</linktype>
       <uniqueidentifier>177</uniqueidentifier>
     </link>
     <nettest>
@@ -1657,5 +1718,6 @@
       <dhost>pc4</dhost>
       <thetest>SuccessfullyPings</thetest>
     </nettest>
+    <tag>WhenToSubnet</tag>
   </Network>
-</EduNetworkBuilder>
+</EduNetworkBuilder>
\ No newline at end of file