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NetXtreme II User Guide
January 2010
Broadcom Corporation
Page 80 iSCSI Boot Document ENGSRVT52-CDUM100-R
NOTE: When using a DHCP server, the DNS server entries are overwritten by the values provided by the DHCP
server. This occurs even if the locally provided values are valid and the DHCP server provides no DNS server
information. When the DHCP server provides no DNS server information, both the primary and secondary DNS
server values are set to 0.0.0.0. When the Windows OS takes over, the Microsoft iSCSI initiator retrieves the iSCSI
Initiator parameters and configures the appropriate registries statically. It will overwrite whatever is configured.
Since the DHCP daemon runs in the Windows environment as a user process, all TCP/IP parameters have to be
statically configured before the stack comes up in the iSCSI Boot environment.
If DHCP Option 17 is used, the target information is provided by the DHCP server, and the initiator iSCSI name is retrieved
from the value programmed from the Initiator Parameters screen. If no value was selected, then the controller defaults to the
name:
iqn.1995-05.com.broadcom.<11.22.33.44.55.66>.iscsiboot
where the string 11.22.33.44.55.66 corresponds to the controller’s MAC address.
If DHCP option 43 (IPv4 only) is used, then any settings on the Initiator Parameters, 1st Target Parameters, or 2nd Target
Parameters screens are ignored and do not need to be cleared.
To configure the iSCSI boot parameters using dynamic configuration
1. From the MBA Configuration Menu, select CTRL+K.
2. From the Main menu, select General Parameters.
3. From the General Parameters screen, set the following:
• TCP/IP parameters via DHCP: Enabled. (For IPv4.)
• IP Autoconfiguration: Enabled. (For IPv6, non-offload.)
• iSCSI parameters via DHCP: Enabled
• CHAP Authentication: Disabled
• Boot to iSCSI target: Disabled
• DHCP Vendor ID: BRCM ISAN
• Link Up Delay Time: 0
• Use TCP Timestamp: Enabled
• Target as First HDD: Disabled
• LUN Busy Retry Count: 0
• IP Version: IPv6. (For IPv6, non-offload.)
• Windows HBA Boot Mode: Disabled
4. Select ESC to return to the Main menu.
NOTE: Information on the Initiator Parameters 1st Target Parameters, and 2nd Target Parameters screens are
ignored and do not need to be cleared.
5. A second iSCSI boot adapter can be configured for redundancy in the event the primary adapter fails to boot. To
configure the secondary device parameters, select Secondary Device Parameters from the Main menu (see Configure
Parameters for a Secondary Adapter). Otherwise, go to step 12.
6. Select Exit and Save Configurations.