Home
  •  

Failed to resolve a remote gateway address specified for VPN site-to-site network

Microsoft.ISAServer.2006.Failed_to_resolve_a_remote_gateway_address_specified_for_VPN_site_to_site_network.Rule (Rule)

This Rule generates alerts when Failed to resolve a remote gateway address specified for VPN site-to-site network

Knowledge Base article:

Summary

The name specified as the remote gateway for site-to-site network cannot be resolved. As a result, the VPN connection cannot be established to the remote network.

In addition, if the array is NLB enabled, the traffic from this network may be handled by the wrong server.

Causes

The name specified as the remote gateway for site-to-site network is wrong.

Name resolution services are not working properly

Resolutions

Check that the remote gateway name is resolvable and change it if needed

Specify an IP address instead of a server name

External

For more information about NLB, see Network Load Balancing topic in ISA server documentation.

For more information about the Microsoft implementation of load balancing protocol, see Network Load Balancing (NLB) topic in http://msdn.microsoft.com

Element properties:

TargetMicrosoft.ISAServer.2006.VPN.ServerRole
CategoryEventCollection
EnabledTrue
Alert GenerateFalse
RemotableTrue

Member Modules:

ID Module Type TypeId RunAs 
DS DataSource Microsoft.ISAServer.2006.Rule.AlertGenerate.DS Default
WA WriteAction Microsoft.ISAServer.2006.Rule.AlertGenerate.WA Default

Source Code:

<Rule ID="Microsoft.ISAServer.2006.Failed_to_resolve_a_remote_gateway_address_specified_for_VPN_site_to_site_network.Rule" Enabled="onEssentialMonitoring" Target="Microsoft.ISAServer.2006.VPN.ServerRole" ConfirmDelivery="true" Remotable="true" Priority="Normal" DiscardLevel="100">

  <Category>EventCollection</Category>

  <DataSources>

    <DataSource ID="DS" TypeID="Microsoft.ISAServer.2006.Rule.AlertGenerate.DS">

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

      <LogName>Application</LogName>

      <EventsPattern>^(21255)$</EventsPattern>

      <EventType>2</EventType>

      <SourcePattern>Microsoft Firewall</SourcePattern>

    </DataSource>

  </DataSources>

  <WriteActions>

    <WriteAction ID="WA" TypeID="Microsoft.ISAServer.2006.Rule.AlertGenerate.WA">

      <AlertMessageId>$MPElement[Name="Microsoft.ISAServer.2006.Failed_to_resolve_a_remote_gateway_address_specified_for_VPN_site_to_site_network.AlertMessage"]$</AlertMessageId>

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

      <Priority>1</Priority>

      <Severity>2</Severity>

    </WriteAction>

  </WriteActions>

</Rule>