ERROR_IPSEC_MM_FILTER_PENDING_DELETION - 13018 (0x32DA)
The Main Mode filter is pending deletion.
Updated: Feb 21, 2026
Technical Meaning
The error code ERROR_IPSEC_MM_FILTER_PENDING_DELETION with the numeric value 13018 and hexadecimal representation 0x32DA indicates that a Main Mode filter in the Internet Protocol Security (IPsec) system is scheduled for deletion. This status suggests that the filter has been marked for removal but may not have been fully deleted yet.
Error Details
This error typically arises when an IPsec policy or configuration change results in one or more filters being flagged for deletion. The system retains these pending deletions to ensure a smooth transition and avoid abrupt changes that could affect network security.
Usage Context
The ERROR_IPSEC_MM_FILTER_PENDING_DELETION is relevant primarily within the context of IPsec policy management and configuration changes in Windows systems. It can be encountered during operations such as modifying or removing IPsec policies, which involve updating or deleting filters associated with Main Mode connections.
Developer Interpretation
Developers should interpret this error code to indicate that a filter intended for deletion is currently in the process of being removed but has not yet been fully deleted. This status can be expected during policy changes and does not necessarily represent an immediate issue, as the system manages these transitions carefully.
Related Errors
ERROR_IPSEC_MM_FILTER_NOT_FOUND(13024): Indicates that a filter was not found in the IPsec configuration.ERROR_IPSEC_MM_FILTER_EXISTS(13019): Suggests that a duplicate filter exists, which may prevent deletion.
FAQ
What does ERROR_IPSEC_MM_FILTER_PENDING_DELETION mean?
This error indicates that an IPsec Main Mode filter is scheduled for deletion but has not yet been fully removed from the system.
How can I resolve this issue?
No immediate action may be required, as the system manages these transitions. However, if the issue persists or causes unexpected behavior, review recent changes to your IPsec policies and ensure that all necessary filters are correctly configured.
Summary
The ERROR_IPSEC_MM_FILTER_PENDING_DELETION error code is a specific technical indicator used by Windows systems during IPsec policy management operations. It signifies that a Main Mode filter is in the process of being deleted but has not yet been fully removed, which is typically part of normal system behavior.