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DNS64 discovery

Microsoft.Forefront.UAG.DNS64Discovery (Discovery)

DNS64 complements a NAT64 deployment by translating IPv4 DNS responses to IPv6 DNS responses according to a predefined NAT64 prefix.
Discovery of the DNS64 component happens only if the machine is discovered as a DirectAccess server. The registry key HKLM\Software\WhaleCom\e-Gap\Configuration\DirectAccess\Received\DNS64_State, value=1 is checked. This key is automatically created during the configuration of the DirectAccess server.

Knowledge Base article:

Summary

DNS64 complements a NAT64 deployment by translating IPv4 DNS responses to IPv6 DNS responses according to a predefined NAT64 prefix.

Configuration

Discovery of DNS64 happens only if the machine is discovered as a DirectAccess server. The following registry key is checked: HKLM\Software\WhaleCom\e-Gap\Configuration\DirectAccess\Received\DNS64_State, value=1.

Element properties:

TargetMicrosoft.Forefront.UAG.DirectAccess
EnabledTrue
Frequency14400
RemotableFalse

Object Discovery Details:

Discovered Classes and their attribuets:

Member Modules:

ID Module Type TypeId RunAs 
DS DataSource Microsoft.Windows.FilteredRegistryDiscoveryProvider Default

Source Code:

<Discovery ID="Microsoft.Forefront.UAG.DNS64Discovery" Enabled="true" Target="Microsoft.Forefront.UAG.DirectAccess" ConfirmDelivery="false" Remotable="true" Priority="Normal">

  <Category>Discovery</Category>

  <DiscoveryTypes>

    <DiscoveryClass TypeID="Microsoft.Forefront.UAG.DNS64">

      <Property TypeID="System!System.Entity" PropertyID="DisplayName"/>

    </DiscoveryClass>

  </DiscoveryTypes>

  <DataSource ID="DS" TypeID="Windows!Microsoft.Windows.FilteredRegistryDiscoveryProvider">

    <ComputerName>$Target/Host/Host/Property[Type="Windows!Microsoft.Windows.Computer"]/NetworkName$</ComputerName>

    <RegistryAttributeDefinitions>

      <RegistryAttributeDefinition>

        <AttributeName>DNS64Exists</AttributeName>

        <Path>Software\WhaleCom\e-Gap\Configuration\DirectAccess\Received\DNS64_State</Path>

        <PathType>1</PathType>

        <AttributeType>2</AttributeType>

      </RegistryAttributeDefinition>

    </RegistryAttributeDefinitions>

    <Frequency>14400</Frequency>

    <ClassId>$MPElement[Name="Microsoft.Forefront.UAG.DNS64"]$</ClassId>

    <InstanceSettings>

      <Settings>

        <Setting>

          <Name>$MPElement[Name="Microsoft.Forefront.UAG.DirectAccess"]/ID$</Name>

          <Value>$Target/Host/Host/Property[Type="Windows!Microsoft.Windows.Computer"]/PrincipalName$</Value>

        </Setting>

        <Setting>

          <Name>$MPElement[Name="Windows!Microsoft.Windows.Computer"]/PrincipalName$</Name>

          <Value>$Target/Host/Host/Property[Type="Windows!Microsoft.Windows.Computer"]/PrincipalName$</Value>

        </Setting>

        <Setting>

          <Name>$MPElement[Name="System!System.Entity"]/DisplayName$</Name>

          <Value>DNS64</Value>

        </Setting>

      </Settings>

    </InstanceSettings>

    <Expression>

      <SimpleExpression>

        <ValueExpression>

          <XPathQuery Type="String">Values/DNS64Exists</XPathQuery>

        </ValueExpression>

        <Operator>Equal</Operator>

        <ValueExpression>

          <Value Type="String">1</Value>

        </ValueExpression>

      </SimpleExpression>

    </Expression>

  </DataSource>

</Discovery>