DHCP relay failure

DHCP_relay_failure_1_Rule (Rule)

Knowledge Base article:

Management Pack


The DHCP Relay Agent (IPBOOTP) encountered an error relaying a DHCP request or reply.



The most common reasons for this error are:

1.     The connection was dropped because of a network failure or because the remote computer stopped responding.

2.     The network subsystem has failed.

3.     The Windows Sockets implementation was unable to allocate the needed resources for its internal operation.



1.     If the server is low on memory, take appropriate action to increase the available memory. See Help and Support Center for information on low memory.

2.     Verify network connectivity between the RRAS server and the remote computer. Confirm that the remote computer is online and operating normally.

3.     Stop and restart the Routing and Remote Access service.

4.     If the problem persists, restart the RRAS computer.


Sample Event

Sample Event#1: IPBOOTP was unable to relay a DHCP REQUEST packet on the local interface with IP address %1; the REQUEST was to have been relayed to the DHCP server with IP address %2.The data is the error code.
Sample Event#2: IPBOOTP was unable to relay a DHCP REPLY packet on the local interface with IP address %1; the REPLY was to have been relayed to the DHCP client with hardware address %2.The data is the error code.


© 2004 Microsoft Corporation, all rights reserved.


Element properties:

Alert GenerateFalse
Event LogSystem

Member Modules:

ID Module Type TypeId RunAs 
DS DataSource Microsoft.Windows.EventProvider Default
WriteToDB WriteAction Microsoft.SystemCenter.CollectEvent Default

Source Code:

<Rule ID="DHCP_relay_failure_1_Rule" Enabled="true" Target="Microsoft.Windows.Server.RRAS.2008.Server" ConfirmDelivery="true" Remotable="true" Priority="Normal" DiscardLevel="100">
<DataSource ID="DS" TypeID="Windows!Microsoft.Windows.EventProvider">
<XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>
<XPathQuery Type="String">PublisherName</XPathQuery>
<WriteAction ID="WriteToDB" TypeID="SC!Microsoft.SystemCenter.CollectEvent"/>