ERROR_IPSEC_IKE_INVALID_MAJOR_VERSION - 13880 (0x3638)
The recipient cannot handle version of IKE specified in the header.
Updated: Feb 21, 2026
Technical Meaning
This error code indicates that the recipient of an IPsec/IKE message cannot process a version of the IKE protocol specified in the header. This typically occurs when there is a mismatch between the sender's and receiver's supported IKE versions.
Error Details
The ERROR_IPSEC_IKE_INVALID_MAJOR_VERSION error (13880, 0x3638) signifies that the recipient of an IPsec/IKE message cannot handle the version of the IKE protocol indicated in the header. This can happen due to several reasons, such as incompatible software versions or incorrect configuration.
Usage Context
This error is commonly encountered during the establishment of IPsec security associations (SAs), where both parties must agree on a compatible version of the IKE protocol. If one party attempts to initiate an IKE exchange with a version that the other party does not support, this error will be returned.
Developer Interpretation
Developers should interpret this error as indicating a compatibility issue between the sender and receiver in terms of supported IKE versions. The recipient is unable to process the message due to a protocol version mismatch. Developers should ensure that both parties are configured with compatible IKE versions before attempting to establish an IPsec connection.
Related Errors
FAQ
Q: What does the ERROR_IPSEC_IKE_INVALID_MAJOR_VERSION error mean?
A: This error indicates that the recipient cannot handle the version of IKE specified in the header, typically due to a protocol version mismatch.
Q: How can I resolve this issue?
A: Ensure both parties are configured with compatible IKE versions before attempting to establish an IPsec connection. Verify the software and configuration settings on both ends.
Summary
The ERROR_IPSEC_IKE_INVALID_MAJOR_VERSION error (13880, 0x3638) is a specific technical issue related to versioning in the IPsec/IKE protocol. It indicates that the recipient cannot process an IKE message due to an incompatible version of the protocol. Developers should focus on ensuring compatibility between the sender and receiver during IPsec setup.