Do not allow sessions without one way CHAP

Policy ID: iSCSISecurity_RequireOneWayCHAP
Scope: Computer Configuration
Supported on: At least Windows Vista
Source: Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
Category: System › iSCSI › iSCSI Security

Description

If enabled then only those sessions that are configured for one-way CHAP may be established. If disabled then sessions that are configured for one-way CHAP or sessions not configured for one-way CHAP may be established. Note that if the "Do not allow sessions without mutual CHAP" setting is enabled then that setting overrides this one.

Registry

ComputerHKEY_LOCAL_MACHINE

HKLM\Software\Policies\Microsoft\Windows\iSCSI View registry values

RequireOneWayCHAPREG_DWORD

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