DHCP IPv4 Scope Unknown Option Monitor

Microsoft.Windows.DHCPServer.Library.IPv4Scope.UnitMonitor.UnknownScopeOption (UnitMonitor)

The DHCP service received an unknown IPv4 scope option from the client

Knowledge Base article:

Resolutions

Configure the DHCP server to recognize all options that the client sends.

To perform these procedures, you must be a member of the Administrators group, or you must have been delegated the appropriate authority.

To identify the DHCP options requested by the client:

Caution: Incorrectly editing the registry might severely damage your computer. Before making changes to the registry, back up any valued data.

At the DHCP client, click Start, in Start Search type cmd, and then press ENTER.
Type regedit, and then press ENTER.
Navigate the registry tree to the following entry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Dhcp\Parameters\options
Under options, compare the option number requested by the client with the options configured on the DHCP server.
After comparing the option numbers, you can manage your DHCP options on the server or client so that they match.

Element properties:

Target

Microsoft.Windows.DHCPServer.Library.IPv4Scope

Parent Monitor

System.Health.ConfigurationState

Category

StateCollection

Enabled

True

Alert Generate

True

Alert Severity

MatchMonitorHealth

Alert Priority

Normal

Alert Auto Resolve

True

Monitor Type

Microsoft.Windows.SingleEventLogManualReset2StateMonitorType

Remotable

True

Accessibility

Public

Alert Message

DHCP Unknown IPv4 Scope Option Alert

{0}

RunAs

Microsoft.Windows.DHCPServer.Library.ActionAccount

Source Code:

<UnitMonitor ID="Microsoft.Windows.DHCPServer.Library.IPv4Scope.UnitMonitor.UnknownScopeOption" Accessibility="Public" Enabled="true" Target="Microsoft.Windows.DHCPServer.Library.IPv4Scope" ParentMonitorID="Health!System.Health.ConfigurationState" Remotable="true" Priority="Normal" TypeID="Windows!Microsoft.Windows.SingleEventLogManualReset2StateMonitorType" ConfirmDelivery="false" RunAs="Microsoft.Windows.DHCPServer.Library.ActionAccount">

  <Category>StateCollection</Category>

  <AlertSettings AlertMessage="Microsoft.Windows.DHCPServer.Library.IPv4Scope.UnitMonitor.UnknownScopeOption_AlertMessageResourceID">

    <AlertOnState>Warning</AlertOnState>

    <AutoResolve>true</AutoResolve>

    <AlertPriority>Normal</AlertPriority>

    <AlertSeverity>MatchMonitorHealth</AlertSeverity>

    <AlertParameters>

      <AlertParameter1>$Data/Context/EventDescription$</AlertParameter1>

    </AlertParameters>

  </AlertSettings>

  <OperationalStates>

    <OperationalState ID="EventRaised" MonitorTypeStateID="EventRaised" HealthState="Warning"/>

    <OperationalState ID="ManualResetEventRaised" MonitorTypeStateID="ManualResetEventRaised" HealthState="Success"/>

  </OperationalStates>

  <Configuration>

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

    <LogName>System</LogName>

    <Expression>

      <And>

        <Expression>

          <Or>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

                  <XPathQuery Type="String">PublisherName</XPathQuery>

                </ValueExpression>

                <Operator>Equal</Operator>

                <ValueExpression>

                  <Value Type="String">Microsoft-Windows-DHCP-Server</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

                  <XPathQuery Type="String">PublisherName</XPathQuery>

                </ValueExpression>

                <Operator>Equal</Operator>

                <ValueExpression>

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

                </ValueExpression>

              </SimpleExpression>

            </Expression>

          </Or>

        </Expression>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="UnsignedInteger">1000</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

      </And>

    </Expression>

  </Configuration>

</UnitMonitor>