20200916-Linux 7 配置网卡(nmcli)

最新推荐文章于 2025-05-15 09:28:28 发布

原创最新推荐文章于 2025-05-15 09:28:28 发布

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#linux #服务器 #网络

在这里插入图片描述

操作系统版本：

[root@cjcos01 network-scripts]# cat /etc/redhat-release 
Red Hat Enterprise Linux Server release 7.5 (Maipo)

查看网卡、IP等信息：

[root@cjcos01 ~]# ifconfig 
enp0s3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.90  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::e07:b869:9f7b:792a  prefixlen 64  scopeid 0x20<link>
        ether 08:00:27:bc:de:5e  txqueuelen 1000  (Ethernet)
        RX packets 929  bytes 1120691 (1.0 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 759  bytes 68662 (67.0 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
enp0s8: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 08:00:27:93:03:0a  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
enp0s9: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 08:00:27:de:7f:38  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
enp0s10: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 08:00:27:56:39:b6  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 0  (Local Loopback)
        RX packets 166  bytes 17894 (17.4 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 166  bytes 17894 (17.4 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
virbr0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 192.168.122.1  netmask 255.255.255.0  broadcast 192.168.122.255
        ether 52:54:00:45:70:b3  txqueuelen 0  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

查看配置信息

[root@cjcos01 network-scripts]# ls -l ifcfg-*
-rw-r--r--  1 root root 472 Sep 16 10:23 ifcfg-enp0s3
-rw-r--r--. 1 root root 254 Jan  3  2018 ifcfg-lo

查看nmcli命令

[root@cjcos01 network-scripts]# man -k nmcli
nmcli (1)            - command-line tool for controlling NetworkManager
nmcli-examples (7)   - usage examples of nmcli

[root@cjcos01 network-scripts]# man nmcli 7
CONNECTION MANAGEMENT COMMANDS
       nmcli connection {show | up | down | modify | add | edit | clone | delete | monitor | reload | load | import |
                        export} [ARGUMENTS...]

添加网卡

[root@cjcos01 network-scripts]# nmcli connection add con-name enp0s8 type ethernet ifname enp0s8 ipv4.method manual ipv4.addresses 192.100.100.10/24 connection.autoconnect yes 
Connection 'enp0s8' (f81306db-bac5-4b2c-ac52-b42c0ca52621) successfully added.

[root@cjcos01 network-scripts]# nmcli connection add con-name enp0s9 type ethernet ifname enp0s9 ipv4.method manual ipv4.addresses 192.100.100.20/24 connection.autoconnect yes 
Connection 'enp0s9' (587e0d6b-c4af-4273-9c48-bd2f66fbbc84) successfully added.

查看网卡配置

[root@cjcos01 network-scripts]# cat ifcfg-enp0s8 
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=none
IPADDR=192.100.100.10
PREFIX=24
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=enp0s8
UUID=f81306db-bac5-4b2c-ac52-b42c0ca52621
DEVICE=enp0s8
ONBOOT=yes

[root@cjcos01 network-scripts]# cat ifcfg-enp0s9 
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=none
IPADDR=192.100.100.20
PREFIX=24
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=enp0s9
UUID=587e0d6b-c4af-4273-9c48-bd2f66fbbc84
DEVICE=enp0s9
ONBOOT=yes

查看网卡信息

[root@cjcos01 network-scripts]# nmcli connection show
NAME    UUID                                  TYPE      DEVICE 
enp0s3  b0b58151-2738-4a9b-8e49-30341e577a60  ethernet  enp0s3 
enp0s8  f81306db-bac5-4b2c-ac52-b42c0ca52621  ethernet  enp0s8 
enp0s9  587e0d6b-c4af-4273-9c48-bd2f66fbbc84  ethernet  enp0s9 
virbr0  c6b6e6fd-1b38-4493-865c-317c16360e46  bridge    virbr0

删除网卡

[root@cjcos01 network-scripts]# nmcli connection delete enp0s8 
Connection 'enp0s8' (2eec6955-a3dd-4909-9cfc-89f06c2a9aca) successfully deleted.
Connection 'enp0s8' (972fecaa-7123-45de-8248-dd77912606a2) successfully deleted.
Connection 'enp0s8' (7916c63a-2c4e-46a5-8dd6-1d752f694825) successfully deleted.

网卡绑定

[root@cjcos01 network-scripts]# nmcli connection add type bond ifname bond0 mode 1 ip4 192.100.100.30/24 ipv4.gateway 192.100.100.254
Connection 'bond-bond0' (80418cf9-d103-4bc3-a5b8-17783a5dd4c5) successfully added.

[root@cjcos01 network-scripts]# nmcli connection add type bond-slave ifname enp0s8 master bond0
Connection 'bond-slave-enp0s8' (9a848655-4f43-423e-b63e-0c382406a208) successfully added.

[root@cjcos01 network-scripts]# nmcli connection add type bond-slave ifname enp0s9 master bond0
Connection 'bond-slave-enp0s9' (df987cba-99bf-444f-a060-e096291a9d3c) successfully added.

查看信息

[root@cjcos01 network-scripts]# nmcli connection show 
NAME               UUID                                  TYPE      DEVICE 
bond-bond0         80418cf9-d103-4bc3-a5b8-17783a5dd4c5  bond      bond0  
enp0s3             b0b58151-2738-4a9b-8e49-30341e577a60  ethernet  enp0s3 
enp0s8             f81306db-bac5-4b2c-ac52-b42c0ca52621  ethernet  enp0s8 
enp0s9             587e0d6b-c4af-4273-9c48-bd2f66fbbc84  ethernet  enp0s9 
virbr0             c6b6e6fd-1b38-4493-865c-317c16360e46  bridge    virbr0 
bond-slave-enp0s8  9a848655-4f43-423e-b63e-0c382406a208  ethernet  --     
bond-slave-enp0s9  df987cba-99bf-444f-a060-e096291a9d3c  ethernet  --

[root@cjcos01 network-scripts]# cat ifcfg-bond-bond0 
BONDING_OPTS=mode=active-backup
TYPE=Bond
BONDING_MASTER=yes
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=none
IPADDR=192.100.100.30
PREFIX=24
GATEWAY=192.100.100.254
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=bond-bond0
UUID=80418cf9-d103-4bc3-a5b8-17783a5dd4c5
DEVICE=bond0
ONBOOT=yes

[root@cjcos01 network-scripts]# cat ifcfg-bond-slave-enp0s8 
TYPE=Ethernet
NAME=bond-slave-enp0s8
UUID=9a848655-4f43-423e-b63e-0c382406a208
DEVICE=enp0s8
ONBOOT=yes
MASTER=bond0
SLAVE=yes

[root@cjcos01 network-scripts]# cat ifcfg-bond-slave-enp0s9 
TYPE=Ethernet
NAME=bond-slave-enp0s9
UUID=df987cba-99bf-444f-a060-e096291a9d3c
DEVICE=enp0s9
ONBOOT=yes
MASTER=bond0
SLAVE=yes

查看网卡绑定信息

[root@cjcos01 network-scripts]# cat /proc/net/bonding/bond0 
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
Bonding Mode: fault-tolerance (active-backup)
Primary Slave: None
Currently Active Slave: None
MII Status: down
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0

启动网卡

[root@cjcos01 network-scripts]# nmcli connection up bond-bond0 
[root@cjcos01 network-scripts]# nmcli connection up bond-slave-enp0s8 
[root@cjcos01 network-scripts]# nmcli connection up bond-slave-enp0s9

查看网卡绑定状态

[root@cjcos01 network-scripts]# cat /proc/net/bonding/bond0 
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
Bonding Mode: fault-tolerance (active-backup)
Primary Slave: None
Currently Active Slave: enp0s8
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
Slave Interface: enp0s8
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 08:00:27:93:03:0a
Slave queue ID: 0
Slave Interface: enp0s9
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 08:00:27:de:7f:38
Slave queue ID: 0

删除网卡绑定

[root@cjcos01 network-scripts]# nmcli connection show
NAME               UUID                                  TYPE      DEVICE 
bond-bond0         80418cf9-d103-4bc3-a5b8-17783a5dd4c5  bond      bond0  
enp0s3             b0b58151-2738-4a9b-8e49-30341e577a60  ethernet  enp0s3 
enp0s8             f81306db-bac5-4b2c-ac52-b42c0ca52621  ethernet  enp0s8 
enp0s9             587e0d6b-c4af-4273-9c48-bd2f66fbbc84  ethernet  enp0s9 
virbr0             c6b6e6fd-1b38-4493-865c-317c16360e46  bridge    virbr0 
bond-slave-enp0s8  9a848655-4f43-423e-b63e-0c382406a208  ethernet  --     
bond-slave-enp0s9  df987cba-99bf-444f-a060-e096291a9d3c  ethernet  --

 
[root@cjcos01 network-scripts]# nmcli connection delete bond-bond0 
Connection 'bond-bond0' (80418cf9-d103-4bc3-a5b8-17783a5dd4c5) successfully deleted.
[root@cjcos01 network-scripts]# nmcli connection delete bond-slave-enp0s8 
Connection 'bond-slave-enp0s8' (9a848655-4f43-423e-b63e-0c382406a208) successfully deleted.
[root@cjcos01 network-scripts]# nmcli connection delete bond-slave-enp0s9 
Connection 'bond-slave-enp0s9' (df987cba-99bf-444f-a060-e096291a9d3c) successfully deleted.

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