Home > Storage > PowerMax and VMAX > Storage Admin > iSCSI Implementation Guide for Dell EMC Storage Arrays Running PowerMaxOS > Configure Windows firewall settings for the MSiSCSI service
In order for the MSiSCSI service to function properly, the Windows firewall settings need to be modified to allow for incoming and outgoing iSCSI traffic.
Examine the firewall rules pertaining to the MSiSCSI service. In the output, Enabled should be set to "true" for both msiscsi-in-tcp and msiscsi-out-tcp rules.
PS C:\> get-netfirewallservicefilter -Service msiscsi | get-netfirewallrule
Name : MsiScsi-In-TCP
DisplayName : iSCSI Service (TCP-In)
Description : Inbound rule for the iSCSI Service to allow communications with an iSCSI server or device. [TCP]
DisplayGroup : iSCSI Service
Group : @FirewallAPI.dll,-29002
Enabled : False <-----
...
Name : MsiScsi-Out-TCP
DisplayName : iSCSI Service (TCP-Out)
Description : Outbound rule for the iSCSI Service to allow communications with an iSCSI server or device. [TCP]
DisplayGroup : iSCSI Service
Group : @FirewallAPI.dll,-29002
Enabled : False <-----
...
If either firewall rule is not enabled, enable them with the following commands.
PS C:\> set-NetFirewallRule -Name MsiScsi-in-TCP -Enabled True
PS C:\> set-NetFirewallRule -Name MsiScsi-out-TCP -Enabled True
Examine the firewall rules again to ensure that they are now enabled.
PS C:\> get-netfirewallservicefilter -Service msiscsi | get-netfirewallrule
Name : MsiScsi-In-TCP
DisplayName : iSCSI Service (TCP-In)
Description : Inbound rule for the iSCSI Service to allow communications with an iSCSI server or device. [TCP]
DisplayGroup : iSCSI Service
Group : @FirewallAPI.dll,-29002
Enabled : True <-----
...
Name : MsiScsi-Out-TCP
DisplayName : iSCSI Service (TCP-Out)
Description : Outbound rule for the iSCSI Service to allow communications with an iSCSI server or device. [TCP]
DisplayGroup : iSCSI Service
Group : @FirewallAPI.dll,-29002
Enabled : True <-----
...