PSQN: iDRAC9 AutoConfig DNS Setting Modified After Applying 6.XX.XX.XX Firmware

After updating to iDRAC9 6.xx.xx.xx firmware versions from earlier iDRAC9 3.xx/4.xx/5.xx firmware versions, the iDRAC9 DNS settings will shift from Disabled to Enabled. These settings changes can lead to the iDRAC9 becoming inaccessible by FQDN string. The following DNS settings will shift from Disabled to Enabled after update:

• Auto Config Domain Name
• Use DHCP to Obtain DNS Server Addresses
• Use DHCPv6 to obtain DNS Server Addresses

iDRAC9 UI > iDRAC Settings > Connectivity > Network > Common Settings Example:

iDRAC9 UI > iDRAC Settings > Connectivity > Network > IPv4 Settings Example:

iDRAC9 UI > iDRAC Settings > Connectivity > Network > IPv6 Settings Example:

This behavior is expected when traversing from iDRAC 5.xx.xx.xx firmware to iDRAC 6.xx.xx.xx firmware versions. The default DNS values were modified for Auto Config Domain Name attributes. This was a one-time change to add DNS support for Zero-Touch Deployment by FQDN. The change is captured within several online iDRAC9 6.xx.xx.xx documents.

iDRAC9 6.00.02.00 Release Notes: 

iDRAC9 6.00.02.00 Release Notes

• Automation — API and CLI
•  Redfish Lifecycle Events (RLCE) in Telemetry
•  Added threshold range values to Telemetry Sensor reports
•  Added basic memory error information, available through Redfish APIs
•  Support for Redfish 2020.3, 2020.4 updates

• Support for additional Redfish 2020.1 and 2020.2 updates
• Added support for CA certificates to the Server Configuration Profiles (SCP)
• Use DHCP to Obtain DNS Server Addresses
• Report "OS installation complete" status
• Added progress bar for Server Configuration Profiles export
• Server HostName included in iDRAC Redfish Events
• Redfish support for property "LastPowerOutputWatts"
• Support for aliasing of Top-Level Redfish URIs
• Support for Zero-Touch Deployment using mDNS
• FQDN support in Zero-Touch Deployment

iDRAC9 6.10.30.00 Release Notes:

iDRAC9 6.10.30.00 Release Notes 

iDRAC firmware

• In iDRAC, attaching a folder that is in an NFS share hosted by a Linux-based operating system is not supported.
• In the Lifecycle (LC) interface, It is recommended to avoid performing any operations on media that are mounted as RFS through iDRAC GUI/RACADM/Redfish.
• Updating iDRAC firmware to version 6.xx or later changes the static IPv4 or IPv6 DNS settings. Ensure that you reconfigure the network settings after the upgrade is complete.

iDRAC9 6.xx User Guide:

iDRAC9 User's Guide

Configuring the network settings

To configure the network settings:

iDRAC9 DNS settings may need to be reverted back to the Disabled setting after updating to iDRAC9 6.xx.xx.xx firmware versions from earlier firmware releases. The iDRAC will still be accessible using remote interfaces through IPv4 or IPv6 addressing. Also, DRACTOOLS RACADM utility can be leveraged through Host Operating System to modify the iDRAC Settings.

#Disable Auto Config Domain Name Example:

racadm>>racadm set idrac.NIC.DNSDomainFromDHCP Disabled
[Key=idrac.Embedded.1#NIC.1]
Object value modified successfully

#Disable IPv4 Use DHCP To Obtain DNS Server Example: 

racadm>>racadm set idrac.ipv4.DNSFromDHCP Disabled
[Key=idrac.Embedded.1#IPv4.1]
Object value modified successfully

#Disable IPv6 Use DHCP to Obtain DNS Server Example:

racadm>>racadm set idrac.ipv6.dnsfromdhcp6 Disabled
[Key=idrac.Embedded.1#IPv6.1]
Object value modified successfully