
Issue 11
© Solarflare Communications 2014
357
Solarflare Server Adapter
User Guide
DHCP Option 12, Host Name
If the adapter is configured to obtain its iSCSI initiator IQN via DHCP and option 43.203 is not
configured on your DHCP server, then the adapter will use the DHCP host name option to construct
an iSCSI initiator IQN.
DHCP Option 3, Router List
If the iSCSI initiator and iSCSI target are on different subnets, configure option 3 with the default
gateway or router IP address.
DHCP Option 43, Vendor Specific Information
Option 43 provides sub-options that can be used to specify the iSCSI initiator IQN and the iSCSI target
IQN.
• Option 43.201 provides an alternative to option 17 to describe the location of the iSCSI target.
The format for the iSCSI target IQN is the same as described for DHCP option 17
• Option 43.203 provides a method of completely defining the iSCSI initiator IQN via DHCP.
DHCP Option 60, Vendor ID
When using DHCP option 43 you must also configure option 60 (Vendor id). DHCP option 43 is
described as “vendor specific information” and requires that the vendor id (DHCP option 60)
configured at the DHCP server matches the vendor id configured in the Boot ROM. By default the
Boot ROM uses the vendor id
SFCgPXE
.
Table 93: DHCP Option 43 Sub-Options
Sub-Option
Description
201
First iSCSI target information in the standard root path format
“iscsi:”<servername>”:”<protocol>”:”<port>”:”<LUN>”:”<targetname>
202
Secondary target IQN. This is
Not
supported.
203
iSCSI initiator IQN
NOTE:
If using Option 43, you will also need to configure Option 60.