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.

1. Registry path is:

   HKEY_LOCAL_MACHINE -> Software -> Policies -> Microsoft -> Windows -> iSCSI # RequireOneWayCHAP

2. The Administrative Template path is:

   System -> iSCSI -> iSCSI Security

* Making mistakes while changing registry values can affect your system adversely. We recommend you to create a System Restore point before making registry manipulation. If you're new to Registry Editor, read this beginner's guide.

** To locate the registry and administrative template path, checkout beginner's guide.