Users Guide

NOTE:

If you disable CMC network interface, the disable operation performs the following actions:

• Disables the network interface access to out-of-band chassis management, including iDRAC and IOM management.

• Prevents the down link status detection.

To disable only CMC network access, disable both CMC IPv4 and CMC IPv6.

NOTE: The CMC NIC is enabled by default.

To enable or disable the CMC IPv4 addressing, type:

racadm config -g cfgLanNetworking -o cfgNicIPv4Enable 1

racadm config -g cfgLanNetworking -o cfgNicIPv4Enable 0

NOTE: The CMC IPv4 addressing is enabled by default.

To enable or disable the CMC IPv6 addressing, type:

racadm config -g cfgIpv6LanNetworking -o cfgIPv6Enable 1

racadm config -g cfgIpv6LanNetworking -o cfgIPv6Enable 0

NOTE: The CMC IPv6 addressing is disabled by default.

For an IPv4 network, to disable DHCP and specify static CMC IP address, gateway, and subnet mask, type:

racadm config -g cfgLanNetworking -o cfgNicUseDHCP 0

racadm config -g cfgLanNetworking -o cfgNicIpAddress <static IP address>

racadm config -g cfgLanNetworking -o cfgNicGateway <static gateway>

racadm config -g cfgLanNetworking -o cfgNicNetmask <static subnet mask>

By default, the DHCP is disabled. To enable DHCP and use the DHCP server on the network to assign iDRAC or CMC IPv4 address,

subnet mask, and gateway, type:

racadm config -g cfgLanNetworking -o cfgNicUseDHCP 1

By default, for IPv6, the CMC requests and automatically obtains a CMC IP address from the IPv6 autoconfiguration mechanism.

For an IPv6 network, to disable the Autoconfiguration feature and specify a static CMC IPv6 address, gateway, and prefix length,

type:

racadm config -g cfgIPv6LanNetworking -o

cfgIPv6AutoConfig 0

racadm config -g cfgIPv6LanNetworking -o

cfgIPv6Address <IPv6 address>

racadm config -g cfgIPv6LanNetworking -o

cfgIPv6PrefixLength 64

racadm config -g cfgIPv6LanNetworking -o

cfgIPv6Gateway <IPv6 address>

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 enable the DHCP for DNS address feature and specify the static preferred and alternate DNS server addresses, type:

racadm config -g cfgLanNetworking -o

cfgDNSServersFromDHCP 1

To enable 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 1

Setting static DNS IP addresses

NOTE: The static DNS IP addresses settings are not valid unless the DCHP for DNS address feature is disabled.