NetApp
Configuration > Protocols > iSCSI : Configuring iSCSI : Enabling or disabling the iSCSI service on storage system interfaces
Enabling or disabling the iSCSI service on storage system interfaces
You can control which network interfaces are used for iSCSI communication by enabling or disabling the interfaces. When the iSCSI service is enabled, iSCSI connections and requests are accepted over those network interfaces that are enabled for iSCSI, but not over disabled interfaces.
About this task 
By default, the iSCSI service is enabled on all Ethernet interfaces after you enable the iSCSI license. Disabling an interface requires termination of any outstanding iSCSI connections and sessions currently using that interface.
Steps 
1.
From the Home tab, double-click the appropriate storage system.
2.
In the navigation pane, click Configuration > Network > NIS.
3.
In the iSCSI Interfaces area, select the interface on which you want to enable or disable the iSCSI service.
4.
Click Enable or Disable, as appropriate.