CentOS8 Stream 網卡配置操作

CentOS8 已廢棄network.service，網卡操作需要使用nmcli ，當前整理配置文件操作及相關命令

命令：nmcli

配置文件：/etc/sysconfig/network-scripts/ifcfg-eth0

配置單個ipv4地址

IP:60.247.159.221 掩碼：255.255.255.0 網關：60.247.159.1

[root@ebs-113436 ~]# vim /etc/sysconfig/network-scripts/ifcfg-eth0

# 申明網卡eth0 
DEVICE=eth0
BOOTPROTO=static
IPADDR=60.247.159.221
NETMASK=255.255.255.0
GATEWAY=60.247.159.1
TYPE=Ethernet
ONBOOT=yes

配置多個ipv4地址

IP1:60.247.159.221 掩碼1：255.255.255.0 網關1：60.247.159.152

IP2:60.247.159.221 掩碼2：255.255.255.0
多ip配置一般只需要配置一個GATEWAY0 網關即可

[root@ebs-113436 ~]# vim /etc/sysconfig/network-scripts/ifcfg-eth0

# 申明網卡eth0 
DEVICE=eth0
BOOTPROTO=static
TYPE=Ethernet
ONBOOT=yes
IPADDR0=60.247.159.221
IPADDR1=60.247.159.152 
NETMASK0=255.255.255.0
NETMASK1=255.255.255.0
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GATEWAY0=60.247.159.1

幾個依此添加即可，如果ip較多，一個IP段添加。

先通過http://tool.520101.com/wangluo/ipjisuan/ 計算ip地址

獲取到第一個和最后一個可用ip尾數為193和254，以及掩碼255.255.255.192，并注意服務器上網絡連接名稱，加入

for I in $(seq 193 254); do nmcli con mod eth0 +ipv4.addresses 192.168.1.${I}/26; done

單個ipv6配置

ipv4：60.247.159.221 掩碼：255.255.255.0 網關：60.247.159.1
ipv6：240E:D9:C200:160:9404::1A80 掩碼位數：64 網關：240e:d9:c200:160::1

[root@ebs-113436 ~]# vim /etc/sysconfig/network-scripts/ifcfg-eth0

# 申明網卡eth0 
DEVICE=eth0
BOOTPROTO=static
IPADDR=60.247.159.221
NETMASK=255.255.255.0
GATEWAY=60.247.159.1
TYPE=Ethernet
ONBOOT=yes
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6ADDR=240E:D9:C200:160:9404::1A80/64
IPV6_DEFAULTGW=240e:d9:c200:160::1

多個ipv6配置

ipv4：60.247.159.221 掩碼：255.255.255.0 網關：60.247.159.1
ipv6：240E:D9:C200:160:9404::1A80-240E:D9:C200:160:9404::1a9f 掩碼位數：64 網關：240e:d9:c200:160::1

[root@ebs-113436 ~]# vim /etc/sysconfig/network-scripts/ifcfg-eth0

# 申明網卡eth0 
DEVICE=eth0
BOOTPROTO=static
IPADDR=60.247.159.221
NETMASK=255.255.255.0
GATEWAY=60.247.159.1
TYPE=Ethernet
ONBOOT=yes
# IPV6配置
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6ADDR=240E:D9:C200:160:9404::1A80/64
IPV6_DEFAULTGW=240e:d9:c200:160::1
# 多IPV6配置  用空格分開
IPV6ADDR_SECONDARIES="240E:D9:C200:160:9404::1a80/64  240E:D9:C200:160:9404::1a81/64  240E:D9:C200:160:9404::1a82/64  240E:D9:C200:160:9404::1a83/64  240E:D9:C200:160:9404::1a84/64  240E:D9:C200:160:9404::1a85/64  240E:D9:C200:160:9404::1a86/64  240E:D9:C200:160:9404::1a87/64  240E:D9:C200:160:9404::1a88/64  240E:D9:C200:160:9404::1a89/64  240E:D9:C200:160:9404::1a8a/64  240E:D9:C200:160:9404::1a8b/64  240E:D9:C200:160:9404::1a8c/64  240E:D9:C200:160:9404::1a8d/64  240E:D9:C200:160:9404::1a8e/64  240E:D9:C200:160:9404::1a8f/64  240E:D9:C200:160:9404::1a90/64  240E:D9:C200:160:9404::1a91/64  240E:D9:C200:160:9404::1a92/64  240E:D9:C200:160:9404::1a93/64  240E:D9:C200:160:9404::1a94/64  240E:D9:C200:160:9404::1a95/64  240E:D9:C200:160:9404::1a96/64  240E:D9:C200:160:9404::1a97/64  240E:D9:C200:160:9404::1a98/64  240E:D9:C200:160:9404::1a99/64  240E:D9:C200:160:9404::1a9a/64  240E:D9:C200:160:9404::1a9b/64  240E:D9:C200:160:9404::1a9c/64  240E:D9:C200:160:9404::1a9d/64  240E:D9:C200:160:9404::1a9e/64  240E:D9:C200:160:9404::1a9f/64"

ipv6 批量配置教程http://m.gangqidianzi.cn/faq/list.asp?unid=2276

以上配置后需要重啟網卡生效；

網卡服務重啟

# 查看網卡名稱
[root@ebs-113436 ~]# nmcli c
NAME         UUID                                  TYPE      DEVICE 
System eth0  5fb06bd0-0bb0-7ffb-45f1-d6edd65f3e03  ethernet  eth0   
System eth1  9c92fad9-6ecb-3e6c-eb4d-8a47c6f50c04  ethernet  eth1  
# 重啟網卡服務
[root@ebs-113436 ~]# nmcli c reload "System eth0"
[root@ebs-113436 ~]# nmcli c up "System eth0"

# 如果不生效
[root@ebs-113436 ~]# nmcli device reapply eth0
[root@ebs-113436 ~]# nmcli device connect eth0