Dell Emulex Family of Adapters - Manual (Page 1719)

Boot Version 10.2 for NIC, iSCSI, FCoE, and RoCE Protocols User Manual P010097-01B Rev. A
Appendix A. Configuring iSCSI through a DHCP Server using Vendor-Specific Option 43
Overview
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Appendix A. Configuring iSCSI through a DHCP
Server using Vendor-Specific
Option 43
Overview
An iSCSI initiator requires the following parameters to boot from a target:

Its IP address

Its unique node name

The boot iSCSI target’s IP address

The boot target’s name. If not available, this may be discovered using the iSCSI
discovery protocol.

The target’s non-default TCP port number (if applicable)

Header and data digest settings to be used with the target

Authentication parameters, if applicable
If your boot BIOS allows it, you can configure all of the above parameters from a
centrally configured DHCP server using vendor-specific option 43. This appendix
documents this method of configuration. For this method, the initiator must be
configured (using non-DHCP means) with the appropriate DHCP vendor ID. The
method and format for specifying the vendor ID is outside the scope of this document.
The initiator offers this Vendor ID to the DHCP server to retrieve data in the format
described in the following sections.
Two other methods for configuration are not documented in this appendix:

Manual configuration using iSCSISelect or SMCLP/MILI

Pre-boot configuration using CLP /BIOS 3.0
Format of Vendor-Specific Option 43
The format for vendor-specific option 43 is as follows:
iscsi:<ipaddress>:<protocol>:<iscsi port number>:<lun>:<target name>
Fields enclosed in angular brackets (including the angular brackets) should be replaced
with their corresponding values. All fields are case insensitive.
See the example at the end of this document.
Description of Parameters
<ipaddress>
Replace this parameter with a valid IPv4 address in dotted decimal notation. This is
a mandatory field.