Edit C:\Windows\PolicyDefinitions\LinkLayerTopologyDiscovery.admx

??<?xml version="1.0" encoding="utf-8"?>

<policyDefinitions xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" revision="1.0" schemaVersion="1.0" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
  <policyNamespaces>
    <target prefix="linklayertopologydiscovery" namespace="Microsoft.Policies.LinkLayerTopology" />
    <using prefix="windows" namespace="Microsoft.Policies.Windows" />
  </policyNamespaces>
  <resources minRequiredRevision="1.0" />
  <categories>
    <category name="LLTD_Category" displayName="$(string.LLTD_Category)" explainText="$(string.LLTD_Category_Help)">
      <parentCategory ref="windows:Network" />
    </category>
  </categories>
  <policies>
    <policy name="LLTD_EnableLLTDIO" class="Machine" displayName="$(string.LLTD_EnableLLTDIO)" explainText="$(string.LLTD_EnableLLTDIO_Help)" presentation="$(presentation.LLTD_EnableLLTDIO)" key="Software\Policies\Microsoft\Windows\LLTD" valueName="EnableLLTDIO">
      <parentCategory ref="LLTD_Category" />
      <supportedOn ref="windows:SUPPORTED_WindowsVista" />
      <enabledValue>
        <decimal value="1" />
      </enabledValue>
      <disabledValue>
        <decimal value="0" />
      </disabledValue>
      <elements>
        <boolean id="LLTD_EnableLLTDIO_AllowOnDomain" valueName="AllowLLTDIOOnDomain">
          <trueValue>
            <decimal value="1" />
          </trueValue>
          <falseValue>
            <decimal value="0" />
          </falseValue>
        </boolean>
        <boolean id="LLTD_EnableLLTDIO_AllowOnPublicNet" valueName="AllowLLTDIOOnPublicNet">
          <trueValue>
            <decimal value="1" />
          </trueValue>
          <falseValue>
            <decimal value="0" />
          </falseValue>
        </boolean>
        <boolean id="LLTD_EnableLLTDIO_ProhibitOnPrivateNet" valueName="ProhibitLLTDIOOnPrivateNet">
          <trueValue>
            <decimal value="1" />
          </trueValue>
          <falseValue>
            <decimal value="0" />
          </falseValue>
        </boolean>
      </elements>
    </policy>
    <policy name="LLTD_EnableRspndr" class="Machine" displayName="$(string.LLTD_EnableRspndr)" explainText="$(string.LLTD_EnableRspndr_Help)" presentation="$(presentation.LLTD_EnableRspndr)" key="Software\Policies\Microsoft\Windows\LLTD" valueName="EnableRspndr">
      <parentCategory ref="LLTD_Category" />
      <supportedOn ref="windows:SUPPORTED_WindowsVista" />
      <enabledValue>
        <decimal value="1" />
      </enabledValue>
      <disabledValue>
        <decimal value="0" />
      </disabledValue>
      <elements>
        <boolean id="LLTD_EnableRspndr_AllowOnDomain" valueName="AllowRspndrOnDomain">
          <trueValue>
            <decimal value="1" />
          </trueValue>
          <falseValue>
            <decimal value="0" />
          </falseValue>
        </boolean>
        <boolean id="LLTD_EnableRspndr_AllowOnPublicNet" valueName="AllowRspndrOnPublicNet">
          <trueValue>
            <decimal value="1" />
          </trueValue>
          <falseValue>
            <decimal value="0" />
          </falseValue>
        </boolean>
        <boolean id="LLTD_EnableRspndr_ProhibitOnPrivateNet" valueName="ProhibitRspndrOnPrivateNet">
          <trueValue>
            <decimal value="1" />
          </trueValue>
          <falseValue>
            <decimal value="0" />
          </falseValue>
        </boolean>
      </elements>
    </policy>
  </policies>
</policyDefinitions>

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