NetApp
Configuration : Protocols > iSCSI : Managing iSCSI : Editing default security settings
Editing default security settings
You can use the Edit Default Security dialog box to edit the default security settings for iSCSI initiators that are connected to the storage system.
Steps 
1.
From the home page, double-click the appropriate storage system.
2.
In the navigation pane, click Configuration > Protocols > iSCSI.
3.
In the Default Security box on the Initiator Security tab, click Edit.
4.
Change the security type.
For CHAP authentication, you must provide the user name and password, and confirm your password for inbound settings. For outbound settings, this login information is optional.
5.
Click OK.
Related reference 
iSCSI window

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