Installation Manual

Configuring Security Features 359
IP Filtering (IpRange)
IP address filtering (or IP Range Checking) allows iDRAC6 access only
from clients or management workstations whose IP addresses are within a
user-specific range. All other logins are denied.
IP filtering compares the IP address of an incoming login to the IP address
range that is specified in the following cfgRacTuning properties:
• cfgRacTuneIpRangeAddr
• cfgRacTuneIpRangeMask
The cfgRacTuneIpRangeMask property is applied to both the incoming
IP address and to the cfgRacTuneIpRangeAddr properties. If the results of
both properties are identical, the incoming login request is allowed to access
the iDRAC6. Logins from IP addresses outside this range receive an error.
The login proceeds if the following expression equals zero:
cfgRacTuneIpRangeMask & (<incoming_IP_address> ^
cfgRacTuneIpRangeAddr)
where & is the bitwise AND of the quantities and ^ is the bitwise
exclusive-OR.
See the
RACADM Command Line Reference Guide for iDRAC6 and CMC
available on the Dell Support website at dell.com/support/manuals for a
complete list of cfgRacTuning properties.
Table 22-11. IP Address Filtering (IpRange) Properties
Property Description
cfgRacTuneIpRangeEnable Enables the IP range checking feature.
cfgRacTuneIpRangeAddr Determines the acceptable IP address bit pattern,
depending on the 1’s in the subnet mask.
This property is bitwise AND’d with
cfgRacTuneIpRangeMask to determine the upper
portion of the allowed IP address. Any IP address that
contains this bit pattern in its upper bits is allowed to
establish an iDRAC6 session. Logins from IP addresses
that are outside this range will fail. The default values
in each property allow an address range from
192.168.1.0 to 192.168.1.255 to establish an iDRAC6
session.