Centos多IP

DHCP 获取 IP 的配置 /etc/sysconfig/network-scripts/ifcfg-ens192

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="ens192"
UUID="f051563c-d6b2-4068-ac17-256b76ec8d14"
DEVICE="ens192"
ONBOOT="yes"

加上如下配置后，会获得两个 IP

IPADDR="192.168.0.181"
PREFIX="24"
GATEWAY="192.168.0.1"
DNS1="192.168.0.1"
IPV6_PRIVACY="no"

systemctl restart network

ip addr

ens192: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
   link/ether 00:0c:29:8e:dc:be brd ff:ff:ff:ff:ff:ff
   inet 192.168.0.182/24 brd 192.168.0.255 scope global noprefixroute dynamic ens192
      valid_lft 86397sec preferred_lft 86397sec
   inet 192.168.0.181/24 brd 192.168.0.255 scope global secondary noprefixroute ens192
      valid_lft forever preferred_lft forever
   inet6 fe80::d731:d09:95d4:867b/64 scope link noprefixroute 
      valid_lft forever preferred_lft forever

此时，如果想保留静态 IP，注释掉如下一行即可

#BOOTPROTO="dhcp"