ERROR_IPSEC_IKE_INVALID_HEADER - 13824 (0x3600)
Invalid header.
Updated: Feb 21, 2026
Technical Meaning
The ERROR_IPSEC_IKE_INVALID_HEADER error code indicates that the IPsec/IKE protocol processing encountered an invalid header. This typically suggests a problem with the structure or content of a header in the IPsec/IKE message being processed.
Error Details
IPsec (Internet Protocol Security) and IKE (Internet Key Exchange) are protocols used to secure network communications by providing authentication, encryption, and integrity checks. The headers in these protocols must adhere to specific formats and contain valid data for proper processing. An invalid header can disrupt the security and functionality of IPsec/IKE connections.
Usage Context
This error is relevant in scenarios where IPsec or IKE messages are being processed by a Windows system. It may occur during the establishment, maintenance, or termination of secure communication channels between network entities.
Developer Interpretation
When encountering this error, developers should consider that an issue with header validation has occurred. This could be due to malformed input data, incorrect protocol usage, or other factors affecting the integrity of the IPsec/IKE message headers. Developers are advised to review and validate the input data being processed by their applications.
Related Errors
ERROR_IPSEC_IKE_INVALID_MESSAGE(13825, 0x3601)ERROR_IPSEC_IKE_PROCESSING_ERROR(13827, 0x3603)
These errors may indicate similar issues with the IPsec/IKE protocol processing.
FAQ
Q: What does the ERROR_IPSEC_IKE_INVALID_HEADER error mean?
A: It indicates that an invalid header was encountered during IPsec/IKE protocol processing, suggesting a problem with the structure or content of a header in the message being processed.
Q: How can I troubleshoot this issue?
A: Review and validate the input data being processed by your application. Ensure that all headers adhere to the correct format and contain valid data.
Summary
The ERROR_IPSEC_IKE_INVALID_HEADER error code is a specific technical indicator of an invalid header in IPsec/IKE protocol processing. Developers should focus on validating input data and ensuring proper protocol usage to avoid this issue.