环境信息： [root@localhost ~]# cat /etc/anolis-release Anolis OS release 8.6 [root@localhost ~]# cat /etc/os-release NAME="Anolis OS" VERSION="8.6" ID="anolis" ID_LIKE="rhel fedora centos" VERSION_ID="8.6" PLATFORM_ID="platform:an8" PRETTY_NAME="Anolis OS 8.6" ANSI_COLOR="0;31" HOME_URL="https://openanolis.cn/" [root@localhost ~]# uname -a Linux localhost.localdomain 4.19.91-26.an8.x86_64 #1 SMP Tue May 24 13:10:09 CST 2022 x86_64 x86_64 x86_64 GNU/Linux 复现方式： 1.查看当前ip： [root@localhost ~]# ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: ens18: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000 link/ether e2:f0:33:26:b2:de brd ff:ff:ff:ff:ff:ff inet 172.31.2.115/24 brd 172.31.2.255 scope global noprefixroute ens18 valid_lft forever preferred_lft forever inet6 fe80::e0f0:33ff:fe26:b2de/64 scope link noprefixroute valid_lft forever preferred_lft forever 3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000 link/ether 52:54:00:bf:73:42 brd ff:ff:ff:ff:ff:ff inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0 valid_lft forever preferred_lft forever 2.修改网卡配置文件 [root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-ens18 TYPE=Ethernet PROXY_METHOD=none BROWSER_ONLY=no BOOTPROTO=static DEFROUTE=yes IPV4_FAILURE_FATAL=no IPV6INIT=yes IPV6_AUTOCONF=yes IPV6_DEFROUTE=yes IPV6_FAILURE_FATAL=no NAME=ens18 UUID=17eb6747-d8cc-4038-a461-45534fb10d98 DEVICE=ens18 ONBOOT=yes IPADDR=172.31.2.117 NETMASK=255.255.255.0 GATEWAY=172.31.2.254 DNS1=114.114.114.114 3.重启网络服务 [root@localhost ~]# systemctl restart NetworkManager 4.查看网卡ip，修改没有生效 [root@localhost ~]# ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: ens18: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000 link/ether e2:f0:33:26:b2:de brd ff:ff:ff:ff:ff:ff inet 172.31.2.115/24 brd 172.31.2.255 scope global noprefixroute ens18 valid_lft forever preferred_lft forever inet6 fe80::e0f0:33ff:fe26:b2de/64 scope link noprefixroute valid_lft forever preferred_lft forever 3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000 link/ether 52:54:00:bf:73:42 brd ff:ff:ff:ff:ff:ff inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0 valid_lft forever preferred_lft forever