Knowledge

ERROR_IPSEC_IKE_INVALID_COOKIE - 13846 (0x3616)

Invalid cookie received.

Updated: Feb 21, 2026

Introduction

This article provides a detailed technical analysis of the ERROR_IPSEC_IKE_INVALID_COOKIE error, which is encountered during IPsec/IKE protocol processing. The error indicates that an invalid cookie was received, which can disrupt secure communication between network peers.

Technical Background

The Internet Key Exchange (IKE) protocol is used to establish and manage security associations in the Internet Protocol Security (IPsec) framework. Cookies are cryptographic tokens used during the IKE negotiation process to ensure mutual authentication and integrity of messages exchanged between peers.

Error Details

Numeric Code: 13846 (0x3616)

Short Description: Invalid cookie received in IPsec/IKE protocol processing.

The ERROR_IPSEC_IKE_INVALID_COOKIE error is a specific error code indicating that an invalid cookie was detected during the IKE negotiation process. This can occur due to various reasons, such as incorrect cryptographic material, timing issues, or misconfiguration of security parameters.

Common Causes

  1. Incorrect Cryptographic Material: The peer might have used incorrect or outdated cryptographic keys or certificates, leading to a mismatch in expected and received cookies.
  2. Timing Issues: Delays in message exchange can cause the cookie to become invalid before it is processed by the receiving party.
  3. Misconfiguration of Security Parameters: Incorrectly configured security policies or parameters can lead to the generation of invalid cookies.

Real-World Context

In a typical IPsec/IKE setup, peers exchange messages during the initial phase of establishing a security association. These messages include cryptographic material such as cookies, which are used for mutual authentication and integrity checks. If an invalid cookie is received, it can disrupt the negotiation process and prevent secure communication.

Is This Error Critical?

The ERROR_IPSEC_IKE_INVALID_COOKIE error is critical because it indicates a failure in the security handshake process. This can lead to failed connections or unauthorized access attempts, compromising the integrity of network communications.

How to Diagnose

  1. Review Operation Context: Ensure that all peers involved in the IKE negotiation are using the correct cryptographic material and security policies.
  2. Validate Parameters: Verify that the security parameters such as keys, certificates, and algorithms are correctly configured on both ends.
  3. Confirm Object Types: Check that the objects being used (e.g., certificates, keys) are of the expected type and not expired or revoked.

How to Resolve

  1. Correct Parameter Usage: Ensure that all cryptographic material is up-to-date and correctly configured.
  2. Adjust Operation Context: If timing issues are suspected, adjust the message exchange intervals to ensure timely delivery of cookies.
  3. Restore Data: Replace any outdated or compromised cryptographic material with valid alternatives.

Developer Notes

When encountering this error, developers should focus on ensuring that all security parameters and cryptographic material are correctly configured and up-to-date. Regularly updating certificates and keys can help prevent such errors from occurring.

Related Errors

  • ERROR_IPSEC_IKE_AUTH_FAILURE (0x3614): Authentication failure during IKE negotiation.
  • ERROR_IPSEC_IKE_CERT_EXPIRED (0x362A): Certificate used in the security association has expired.

FAQ

Q: What does the ERROR_IPSEC_IKE_INVALID_COOKIE error indicate?

A: This error indicates that an invalid cookie was received during IPsec/IKE protocol processing, disrupting secure communication between peers.

Q: How can I prevent this error from occurring?

A: Ensure that all cryptographic material and security parameters are correctly configured and up-to-date. Regularly update certificates and keys to maintain the integrity of your security associations.

Summary

The ERROR_IPSEC_IKE_INVALID_COOKIE error is a specific error code indicating an issue with cookie validation during IPsec/IKE protocol processing. By understanding its causes and following appropriate diagnostic and resolution steps, network administrators can ensure secure communication between peers in their IPsec/IKE setup.