Users Guide

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 DNS Settings (IPv4 and IPv6)

• 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.

• DNS Domain Name — The default DNS domain name is a single blank character. To set a DNS

domain name, type:

racadm config -g cfgLanNetworking -o

cfgDNSDomainName <name>

where <name> is a string of up to 254 alphanumeric characters and hyphens. For example: p45, a-

tz-1, r-id-001.

Configuring Auto Negotiation, Duplex Mode, and Network Speed (IPv4 and

IPv6)

When enabled, the auto negotiation feature determines whether the CMC automatically sets the duplex

mode and network speed by communicating with the nearest router or switch. By default, auto

negotiation feature is enabled.

You can disable auto negotiation and specify the duplex mode and network speed by typing:

racadm config -g cfgNetTuning -o cfgNetTuningNicAutoneg 0

racadm config -g cfgNetTuning -o cfgNetTuningNicFullDuplex <duplex mode>

where:

<duplex mode> is 0 (half duplex) or 1 (full duplex, default)

racadm config -g cfgNetTuning -o cfgNetTuningNicSpeed <speed>

where:

<speed> is 10 or 100 (default).

Setting the Maximum Transmission Unit (MTU) (IPv4 and IPv6)

The MTU property allows you to set a limit for the largest packet that can be passed through the

interface. To set the MTU, type:

racadm config -g cfgNetTuning -o cfgNetTuningMtu <mtu>

where <mtu> is a value between 576–1500 (inclusive; default is 1500).