6.0
vim /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE="eth0" NM_CONTROLLED="yes" ONBOOT=yes HWADDR=00:0C:29:76:0F:64 TYPE=Ethernet BOOTPROTO=dhcp DEFROUTE=yes PEERDNS=yes PEERROUTES=yes IPV4_FAILURE_FATAL=yes IPV6INIT=no NAME="System eth0" UUID=5fb06bd0-0bb0-7ffb-45f1-d6edd65f3e03
7.4
vim /etc/sysconfig/network-scripts/ifcfg-ens33
TYPE="Ethernet" PROXY_METHOD="none" BROWSER_ONLY="no" BOOTPROTO="dhcp" DEFROUTE="yes" IPV4_FAILURE_FATAL="no" IPV6INIT="yes" IPV6_AUTOCONF="yes" IPV6_DEFROUTE="yes" IPV6_FAILURE_FATAL="no" IPV6_ADDR_GEN_MODE="stable-privacy" NAME="ens33" UUID="e1306e89-33d7-40cb-98cb-3a7b6ac48460" DEVICE="ens33" ONBOOT="yes"