10–iSCSI Protocol
iSCSI Boot
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Using DHCP option 43 requires more configuration than DHCP option 17, but it
provides a richer environment and provides more configuration options. QLogic
recommends that customers use DHCP option 43 when performing dynamic
iSCSI boot configuration.
Configuring the DHCP Server
Configure the DHCP server to support option 17 or option 43.
DHCP iSCSI Boot Configuration for IPv6
The DHCPv6 server can provide a number of options, including stateless or
stateful IP configuration, as well s information to the DHCPv6 client. For iSCSI
boot, QLogic adapters support the following DHCP configurations:
DHCPv6 Option 16, Vendor Class Option
DHCPv6 Option 17, Vendor-Specific Information
DHCPv6 Option 16, Vendor Class Option
DHCPv6 Option 16 (vendor class option) must be present and must contain a
string that matches your configured
DHCP Vendor ID
parameter. The
DHCP
Vendor ID
value is QLGC ISAN, as shown in
General Parameters
of the iSCSI
Boot Configuration menu.
202
Second iSCSI target information in the standard root path format
"iscsi:"<servername>":"<protocol>":"<port>":"<LUN>"
:"<targetname>"
203
iSCSI initiator IQN
NOTE
If using Option 43, you also need to configure Option 60. The value of
Option 60 should match the
DHCP Vendor ID
value. The
DHCP Vendor ID
value is QLGC ISAN, as shown in
General Parameters
of the iSCSI Boot
Configuration menu.
NOTE
The DHCPv6 standard Root Path option is not yet available. QLogic
suggests using Option 16 or Option 17 for dynamic iSCSI Boot IPv6 support.
Table 10-3. DHCP Option 43 Suboption Definition (Continued)
Suboption
Definition
