IKE and AuthIP Service Initialization

Applies To: Windows Server 2008

The IKE and AuthIP IPsec Keying Modules (IKEEXT) service must be running for Internet Protocol security (IPsec) to provide authentication and encryption services. This service implements the Internet Key Exchange (IKE) and Authenticated Internet Protocol (AuthIP) protocols. These keying modules support the authentication and key exchange features required by Internet Protocol security (IPsec).

When appropriate auditing events are enabled (http://go.microsoft.com/fwlink/?linkid=92666), Windows reports successes and failures in starting the service, or when the service stops operating due to a failure.


Event ID Source Message



An IPsec negotiation with a remote computer failed because the IKE and AuthIP IPsec Keying Modules (IKEEXT) service is not started.

IPsec IKE and AuthIP Service

Windows Firewall with Advanced Security