Enabling Or Disabling Dhcp For The Cmc Network Interface Address; Enabling Or Disabling Dhcp For Dns Ip Addresses; Setting Static Dns Ip Addresses; Configuring Ipv4 And Ipv6 Dns Settings - Dell EMC PowerEdge VRTX User Manual

cfgIPv6Address <IPv6 address>
racadm config -g cfgIPv6LanNetworking -o
cfgIPv6PrefixLength 64
racadm config -g cfgIPv6LanNetworking -o
cfgIPv6Gateway <IPv6 address>

Enabling or Disabling DHCP for the CMC Network Interface Address

When enabled, the CMC's DHCP for NIC address feature requests and obtains an IP address from the Dynamic Host Configuration
Protocol (DHCP) server automatically. This feature is enabled by default.
You can disable the DHCP for NIC address feature and specify a static IP address, subnet mask, and gateway. For more information,
see Setting Up Initial Access to

Enabling or Disabling DHCP for DNS IP Addresses

By default, the CMC's DHCP for DNS address feature is disabled. When enabled, this feature obtains the primary and secondary
DNS server addresses from the DHCP server. While using this feature, you do not have to configure static DNS server IP addresses.
To disable the DHCP for DNS address feature and specify the static preferred and alternate DNS server addresses, type:
racadm config -g cfgLanNetworking -o
cfgDNSServersFromDHCP 0
To disable the DHCP for DNS address feature for IPv6 and specify the static preferred and alternate DNS server addresses, type:
racadm config -g cfgIPv6LanNetworking -o
cfgIPv6DNSServersFromDHCP6 0

Setting Static DNS IP addresses

NOTE: The static DNS IP addresses settings are not valid unless the DCHP for DNS address feature is disabled.
For IPv4, to set the preferred primary and secondary DNS IP server addresses, type:
racadm config -g cfgLanNetworking -o cfgDNSServer1 <IP-address>
racadm config -g cfgLanNetworking -o cfgDNSServer2 <IPv4-address>
For IPv6, to set the preferred and secondary DNS IP Server addresses, type:
racadm config -g cfgIPv6LanNetworking -o
cfgIPv6DNSServer1 <IPv6-address>
racadm config -g cfgIPv6LanNetworking -o
cfgIPv6DNSServer2 <IPv6-address>

Configuring IPv4 and IPv6 DNS Settings

• CMC Registration — To register the CMC on the DNS server, type:
racadm config -g cfgLanNetworking -o
cfgDNSRegisterRac 1
NOTE: Some DNS servers only register names of 31 characters or fewer. Make sure the designated name is within the
DNS required limit.
NOTE: The following settings are valid only if you have registered the CMC on the DNS server by setting
cfgDNSRegisterRac to 1.
• CMC Name — By default, the CMC name on the DNS server is cmc-<service tag>. To change the CMC name on the DNS
server, type:
racadm config -g cfgLanNetworking -o cfgDNSRacName <name>
where <name> is a string of up to 63 alphanumeric characters and hyphens. For example: cmc-1, d-345.
NOTE: If a DNS Domain name is not specified then the maximum number of characters is 63. If a domain name is
specified then the number of characters in CMC name plus the number of characters in the DNS Domain Name must
be less than or equal to 63 characters.
CMC.
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