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19 Advanced Server Configuration in Dell EMC OpenManage Enterprise 3.0
IP Address Range, Subnet Mask, Gateway, Primary DNS, Secondary DNS
These iSCSI Initiator IP settings are only used when iSCSI is configured for booting, and when iSCSI
Initiator configuration via DHCP is disabled. When iSCSI Initiator configuration via DHCP is enabled, all of
these values are obtained from a designated DHCP server.
The IP Address Range and Subnet Mask fields are used to specify a pool of IP addresses that
OpenManage Enterprise can assign to a device for it to use in its iSCSI Initiator configuration. Unlike the
MAC address pools, a count is not specified for the IP Address Range. Instead, the IP Address Range
may be specified as a range of specific addresses (a starting address and an ending address) or as a
subnet (using either CIDR notation or the Subnet Mask field). A maximum of 64,000 IP addresses are
allowed in a pool.
Gateway, Primary DNS, and Secondary DNS are neither identity values nor used as a pool. They don’t
have to be unique on the network (and usually aren’t unique), but they do serve a couple of purposes
related to identity management. Therefore, they are included on the iSCSI page in the wizard:
 When specified, OpenManage Enterprise uses these values when deploying a template (rather than
using the values originally contained in the template).
 When specified, OpenManage Enterprise will not assign those values from the IP address pool (if
they fall within the specified IP address range). That is, they serve as exclusions from the specified IP
address range (when applicable).
The Identity Pool wizard in OpenManage Enterprise 3.0 supports only IPv4 address ranges. The
following range formats are allowed:
 startIP-endIP
The wizard is picky; it doesn’t allow any spaces around the dash!
This format requires a Subnet Mask to be selected.
 subnet/CIDR
No Subnet Mask is applicable with this format.
 subnet
This format requires a Subnet Mask to be selected.