For IPv4, to set the preferred primary and secondary DNS IP server addresses, type:racadm config -g cfgLanNetworking -o cfgDNSServer1 racadm config -g cfgLanNetworking -o cfgDNSServer2 For IPv6, to set the preferred and secondary DNS IP Server addresses, type:racadm config -g cfgIPv6LanNetworking -ocfgIPv6DNSServer1 racadm config -g cfgIPv6LanNetworking -ocfgIPv6DNSServer2 Viewing and modifying CMC network LAN settingsThe LAN settings, such as community string and SMTP server IP address, affect both the CMC and the external settings of thechassis.When IPv6 is enabled at boot time, three router solicitations are sent after every four seconds. If external network switches arerunning the Spanning Tree Protocol (STP), the external switch ports may be blocked for more than 12 seconds in which the IPv6router solicitations are sent. In such cases, there may be a period when IPv6 connectivity is limited, until router advertisements aregratuitously sent by the IPv6 routers.NOTE: Changing the CMC network settings may disconnect your current network connection.NOTE: You must have Chassis Configuration Administrator privilege to set up CMC network settings.Viewing and modifying CMC network LAN settings using CMC web interfaceTo view and modify the CMC LAN network settings using CMC Web interface:1. In the left pane, click Chassis Overview, and then click Network. The Network Configuration page displays the currentnetwork settings.2. Modify the general, IPv4, or IPv6 settings as required. For more information, see the Online Help.3. Click Apply Changes for each section to apply the settings.Viewing and modifying CMC network LAN settings using RACADMTo view IPv4 settings, use the object cfgCurrentLanNetworking with the following subcommands:• getniccfg• getconfigTo view IPv6 settings, use the cfgIpv6LanNetworking with the getconfig subcommand.To view IPv4 and IPv6 addressing information for the chassis, use the getsysinfo subcommand.For more information about the subcommands and objects, see the Chassis Management Controller for PowerEdge FX2/FX2sRACADM Command Line Reference Guide.Configuring DNS settings (IPv4 and IPv6)• CMC Registration — To register the CMC on the DNS server, type:racadm config -g cfgLanNetworking -ocfgDNSRegisterRac 1NOTE: Some DNS servers only register names of 31 characters or fewer. Make sure the designated name is withinthe DNS required limit.NOTE: The following settings are valid only if you have registered the CMC on the DNS server by settingcfgDNSRegisterRac to 1.• CMC Name — By default, the CMC name on the DNS server is cmc-<service tag>. To change the CMC name on the DNSserver, type:racadm config -g cfgLanNetworking -o cfgDNSRacName <name>58
