Modifying network settings using web interfaceTo modify the iDRAC network settings:1. In the iDRAC Web interface, go to Overview → iDRAC Settings → Network.The Network page is displayed.2. Specify the network settings, common settings, IPv4, IPv6, IPMI, and/or VLAN settings as per your requirement and clickApply.If you select Auto Dedicated NIC under Network Settings, when the iDRAC has its NIC Selection as shared LOM (1, 2, 3, or 4)and a link is detected on the iDRAC dedicated NIC, the iDRAC changes its NIC selection to use the dedicated NIC. If no link isdetected on the dedicated NIC, then the iDRAC uses the shared LOM. The switch from shared to dedicated time-out is fiveseconds and from dedicated to shared is 30 seconds. You can configure this time-out value using RACADM or WS-MAN.For information about the various fields, see the iDRAC Online Help.Modifying network settings using local RACADMTo generate a list of available network properties, use the commandracadm get iDRAC.NicTo use DHCP to obtain an IP address, use the following command to write the object DHCPEnable and enable this feature.racadm set iDRAC.IPv4.DHCPEnable 1The following example shows how the command may be used to configure the required LAN network properties:racadm set iDRAC.Nic.Enable 1racadm set iDRAC.IPv4.Address 192.168.0.120racadm set iDRAC.IPv4.Netmask 255.255.255.0racadm set iDRAC.IPv4.Gateway 192.168.0.120racadm set iDRAC.IPv4.DHCPEnable 0racadm set iDRAC.IPv4.DNSFromDHCP 0racadm set iDRAC.IPv4.DNS1 192.168.0.5racadm set iDRAC.IPv4.DNS2 192.168.0.6racadm set iDRAC.Nic.DNSRegister 1racadm set iDRAC.Nic.DNSRacName RAC-EK00002racadm set iDRAC.Nic.DNSDomainFromDHCP 0racadm set iDRAC.Nic.DNSDomainName MYDOMAINNOTE: If iDRAC.Nic.Enable is set to 0, the iDRAC LAN is disabled even if DHCP is enabled.Configuring IP filteringIn addition to user authentication, use the following options to provide additional security while accessing iDRAC:• IP filtering limits the IP address range of the clients accessing iDRAC. It compares the IP address of an incoming login to thespecified range and allows iDRAC access only from a management station whose IP address is within the range. All other loginrequests are denied.• When repeated login failures occur from a particular IP address, it prevents the address from logging in to iDRAC for apreselected time span. If you unsuccessfully log in up to two times, you are allowed to log in again only after 30 seconds. If youunsuccessfully log in more than two times, you are allowed to log in again only after 60 seconds.As login failures accumulate from a specific IP address, they are registered by an internal counter. When the user successfully logsin, the failure history is cleared and the internal counter is reset.NOTE: When login attempts are prevented from the client IP address, few SSH clients may display the message: sshexchange identification: Connection closed by remote host.NOTE: If you are using Dell Deployment Toolkit (DTK), see theDell Deployment Toolkit User’s Guide for the privileges.80
