Administrator Guide

address owned by the router (1.1.1.1) on ports 9000 and 9001. The router forwards these connections to the appropriate private IP
addresses (192.168.1.50 and 192.168.1.51) on TCP port 3260.
Figure 4. iSCSI NAT Port Forwarding Diagram
1 iSCSI initiator (server or remote Storage Center)
2 Router performing NAT/port forwarding
3 Storage Center
Congure NAT Port Forwarding for an iSCSI Fault Domain
Congure NAT port forwarding for a fault domain to make sure that control port redirection works correctly.
Prerequisites
When the router that performs NAT and port forwarding receives inbound iSCSI connections destined for the specied public IP and public
port, it forwards the connections to the private Storage Center iSCSI IP address and private port (by default, TCP port 3260).
• The Storage Center iSCSI ports must be congured for virtual port mode.
• For each Storage Center iSCSI control port and virtual port, a unique public IP address and TCP port pair must be reserved on the
router that performs NAT.
• The router that performs NAT between the Storage Center and the public network must be congured to forward connections
destined for each public IP address and port pair to the appropriate Storage Center private iSCSI IP address and appropriate port (by
default, TCP 3260).
Steps
1 If you are connected to a Data Collector, select a Storage Center from the drop-down list in the left navigation pane.
2 From the SYSTEM menu, select Ports.
The Ports view is displayed.
3 Click the Front End Ports tab.
4 Expand iSCSI and click the fault domain link.
The Fault Domain view is displayed.
5 On the Summary tab, click (More Actions) and select Congure NAT Port Forwarding.
The Congure NAT Port Forwarding dialog box opens.
6 In the Port Forwarding Conguration area, congure port forwarding information for a Storage Center iSCSI port.
a Click Add.
The Create iSCSI NAT Port Forward dialog box opens.
b From the Name drop-down menu, select the iSCSI control port or a physical port.
• Control ports are labeled with the name of the fault domain.
• Physical ports are labeled with a WWN.
c In the Public IPv4 Address eld, type the IPv4 address that iSCSI initiators (servers and remote Storage Centers) communicate
with on the public network to reach the Storage Center iSCSI port.
d In the Public Port eld, type the TCP port that iSCSI initiators communicate with on the public network to reach the Storage
Center iSCSI port.
e Click OK.
The Create iSCSI NAT Port Forward dialog box closes.
7 Repeat the preceding steps for each additional iSCSI control port and physical port in the fault domain.
Storage Center Maintenance
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