ERROR_IPSEC_MM_AUTH_EXISTS - 13010 (0x32D2)

The specified main mode authentication list exists.

Updated: Feb 21, 2026

Technical Meaning

The error code ERROR_IPSEC_MM_AUTH_EXISTS indicates that the specified main mode authentication list already exists in the system. This is a specific condition encountered during IPsec policy operations.

Error Details

This error typically occurs when an attempt is made to add or modify an existing main mode authentication list, which has already been defined within the current security context. The existence of this list can be due to previous configurations or policies that have been applied and are currently active in the system.

Usage Context

The ERROR_IPSEC_MM_AUTH_EXISTS error is relevant primarily in scenarios involving IPsec policy management and configuration, particularly when dealing with main mode authentication lists. This context includes operations such as adding new authentication methods to an existing list or modifying the parameters of a pre-existing list.

Developer Interpretation

Developers should interpret this error code as a confirmation that the specified main mode authentication list already exists in the system. Upon encountering this error, developers should ensure that their application logic correctly handles scenarios where such lists are expected to exist and avoid redundant operations that could lead to conflicts or inefficiencies.

Related Errors

  • ERROR_IPSEC_MM_AUTH_DOES_NOT_EXIST (13009, 0x32D1): Indicates the specified main mode authentication list does not exist.
  • ERROR_IPSEC_MM_AUTH_LIST_FULL (13014, 0x335E): Indicates that the maximum number of main mode authentication lists has been reached.

FAQ

Q: What causes this error?

A: This error occurs when an attempt is made to add or modify a main mode authentication list that already exists in the system.

Q: How can I resolve this issue?

A: Ensure that your application logic correctly checks for the existence of the specified main mode authentication list before attempting to add or modify it. If the list already exists, consider using other operations such as updating existing parameters rather than adding a new entry.

Summary

The ERROR_IPSEC_MM_AUTH_EXISTS error code is specific to IPsec policy management and indicates that the desired main mode authentication list already exists in the system. Developers should handle this condition appropriately within their application logic to avoid redundant or conflicting operations.