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Centos8如何配置網橋

2023-05-26 05:52:03
100
0

查看網絡腳本目錄，只看到以太網卡eno1的配置：

[root@server ~]# ls -al /etc/sysconfig/network-scripts/
total 8
drwxr-xr-x. 2 root root   24 Oct  6 22:27 .
drwxr-xr-x. 7 root root 4096 Oct  6 23:15 ..
-rw-r--r--. 1 root root  308 Oct  6 22:27 ifcfg-eno1

查看以太網卡配置文件ifcfg-eno1的內容：

[root@server ~]# cat /etc/sysconfig/network-scripts/ifcfg-eno1 
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=eno1
UUID=ce6dd316-b6a9-4e58-9032-e0c1b3fcf1b0
DEVICE=eno1
ONBOOT=yes

查看當前連接：

[root@server ~]# nmcli connection 
NAME    UUID                                  TYPE      DEVICE 
eno1    ce6dd316-b6a9-4e58-9032-e0c1b3fcf1b0  ethernet  eno1   
virbr0  979aeccf-7002-4b27-853b-ca0faddf7f0d  bridge    virbr0

新建網橋，名字為br0：

[root@server ~]# nmcli connection add type bridge con-name br0 ifname br0 autoconnect yes
Connection 'br0' (6d7894dc-ccb0-45a6-9347-940128de7efa) successfully added.

這時/etc/sysconfig/network-scripts目錄已經新增一個文件ifcfg-br0，可查看到內容為：

[root@server ~]# cat /etc/sysconfig/network-scripts/ifcfg-br0 
STP=yes
BRIDGING_OPTS=priority=32768
TYPE=Bridge
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=br0
UUID=6d7894dc-ccb0-45a6-9347-940128de7efa
DEVICE=br0
ONBOOT=yes

查看連接：

[root@server ~]# nmcli connection 
NAME    UUID                                  TYPE      DEVICE 
eno1    ce6dd316-b6a9-4e58-9032-e0c1b3fcf1b0  ethernet  eno1   
virbr0  979aeccf-7002-4b27-853b-ca0faddf7f0d  bridge    virbr0 
br0     6d7894dc-ccb0-45a6-9347-940128de7efa  bridge    br0

網橋br0橋接至eno1：

[root@server ~]# nmcli connection add type bridge-slave ifname eno1 master br0
Connection 'bridge-slave-eno1' (b1788643-bdbb-4f24-adde-265462f172fc) successfully added.

這時/etc/sysconfig/network-scripts目錄已經自動新增一個文件ifcfg-bridge-slave-eno1：

[root@server ~]# cat /etc/sysconfig/network-scripts/ifcfg-bridge-slave-eno1 
TYPE=Ethernet
NAME=bridge-slave-eno1
UUID=b1788643-bdbb-4f24-adde-265462f172fc
DEVICE=eno1
ONBOOT=yes
BRIDGE=br0

查看連接：

[root@server ~]# nmcli connection 
NAME               UUID                                  TYPE      DEVICE 
eno1               ce6dd316-b6a9-4e58-9032-e0c1b3fcf1b0  ethernet  eno1   
virbr0             7bbff2fd-12e1-4e9c-8cd6-9f0bd14ad35e  bridge    virbr0 
br0                6d7894dc-ccb0-45a6-9347-940128de7efa  bridge    br0    
bridge-slave-eno1  b1788643-bdbb-4f24-adde-265462f172fc  ethernet  --

查看網絡：

[root@server ~]# ifconfig 
eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.100  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::548:8ed0:e2e:51cd  prefixlen 64  scopeid 0x20<link>
        ether 00:d8:61:12:34:61  txqueuelen 1000  (Ethernet)
        RX packets 4247  bytes 1606152 (1.5 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1895  bytes 350509 (342.2 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 16  memory 0xdf000000-df020000

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 1000  (Local Loopback)
        RX packets 220  bytes 20176 (19.7 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 220  bytes 20176 (19.7 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:cc:69:3d  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

關閉eno1：

[root@server ~]# nmcli connection down eno1 
Connection 'eno1' successfully deactivated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/2)

打開網橋br0：

[root@server ~]# nmcli connection up br0
Connection successfully activated (master waiting for slaves) (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/4)

注意：如果這個過程是遠程SSH或VNC操作的，需要耐心等信息返回～

查看連接（可以看到網橋已經生效）：

[root@server ~]# nmcli connection 
NAME               UUID                                  TYPE      DEVICE 
br0                6d7894dc-ccb0-45a6-9347-940128de7efa  bridge    br0    
bridge-slave-eno1  b1788643-bdbb-4f24-adde-265462f172fc  ethernet  eno1   
virbr0             7e63fed2-6839-43e0-9580-636729506f8f  bridge    virbr0 
eno1               ce6dd316-b6a9-4e58-9032-e0c1b3fcf1b0  ethernet  --

查看網絡：

[root@server ~]# ifconfig 
br0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.100  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::d0f2:879:9ecf:f907  prefixlen 64  scopeid 0x20<link>
        ether 00:d8:61:12:34:61  txqueuelen 1000  (Ethernet)
        RX packets 200  bytes 74916 (73.1 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 72  bytes 10614 (10.3 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 00:d8:61:12:34:61  txqueuelen 1000  (Ethernet)
        RX packets 4526  bytes 1697104 (1.6 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 2026  bytes 367827 (359.2 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 16  memory 0xdf000000-df020000

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 1000  (Local Loopback)
        RX packets 256  bytes 23716 (23.1 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 256  bytes 23716 (23.1 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:cc:69:3d  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

網橋可以使用了。如不再使用網橋，可關閉，再重新打開eno1即可
————————————————
版權聲明：本文為CSDN博主「智識訓練營」的原創文章，遵循CC 4.0 BY-SA版權協議，轉載請附上原文出處鏈接及本聲明。
原文鏈接：//blog.csdn.net/mdykj33/article/details/102638382

 

 

版權聲明：本文內容系天翼云實名用戶自發貢獻，版權歸原作者所有，天翼云開發者社區不擁有其著作權，亦不承擔相應法律責任，原文鏈接：//blog.csdn.net/mdykj33/article/details/102638382

作者：CSDN博主「智識訓練營」，如需轉載，請聯系作者。

原文出處及轉載信息見文內詳細說明，如有疑問或爭議，請聯系ctyunbbs@chinatelecom.cn刪除。

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Centos8如何配置網橋

2023-05-26 05:52:03
100
0

查看網絡腳本目錄，只看到以太網卡eno1的配置：

[root@server ~]# ls -al /etc/sysconfig/network-scripts/
total 8
drwxr-xr-x. 2 root root   24 Oct  6 22:27 .
drwxr-xr-x. 7 root root 4096 Oct  6 23:15 ..
-rw-r--r--. 1 root root  308 Oct  6 22:27 ifcfg-eno1

查看以太網卡配置文件ifcfg-eno1的內容：

[root@server ~]# cat /etc/sysconfig/network-scripts/ifcfg-eno1 
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=eno1
UUID=ce6dd316-b6a9-4e58-9032-e0c1b3fcf1b0
DEVICE=eno1
ONBOOT=yes

查看當前連接：

[root@server ~]# nmcli connection 
NAME    UUID                                  TYPE      DEVICE 
eno1    ce6dd316-b6a9-4e58-9032-e0c1b3fcf1b0  ethernet  eno1   
virbr0  979aeccf-7002-4b27-853b-ca0faddf7f0d  bridge    virbr0

新建網橋，名字為br0：

[root@server ~]# nmcli connection add type bridge con-name br0 ifname br0 autoconnect yes
Connection 'br0' (6d7894dc-ccb0-45a6-9347-940128de7efa) successfully added.

這時/etc/sysconfig/network-scripts目錄已經新增一個文件ifcfg-br0，可查看到內容為：

[root@server ~]# cat /etc/sysconfig/network-scripts/ifcfg-br0 
STP=yes
BRIDGING_OPTS=priority=32768
TYPE=Bridge
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=br0
UUID=6d7894dc-ccb0-45a6-9347-940128de7efa
DEVICE=br0
ONBOOT=yes

查看連接：

[root@server ~]# nmcli connection 
NAME    UUID                                  TYPE      DEVICE 
eno1    ce6dd316-b6a9-4e58-9032-e0c1b3fcf1b0  ethernet  eno1   
virbr0  979aeccf-7002-4b27-853b-ca0faddf7f0d  bridge    virbr0 
br0     6d7894dc-ccb0-45a6-9347-940128de7efa  bridge    br0

網橋br0橋接至eno1：

[root@server ~]# nmcli connection add type bridge-slave ifname eno1 master br0
Connection 'bridge-slave-eno1' (b1788643-bdbb-4f24-adde-265462f172fc) successfully added.

這時/etc/sysconfig/network-scripts目錄已經自動新增一個文件ifcfg-bridge-slave-eno1：

[root@server ~]# cat /etc/sysconfig/network-scripts/ifcfg-bridge-slave-eno1 
TYPE=Ethernet
NAME=bridge-slave-eno1
UUID=b1788643-bdbb-4f24-adde-265462f172fc
DEVICE=eno1
ONBOOT=yes
BRIDGE=br0

查看連接：

[root@server ~]# nmcli connection 
NAME               UUID                                  TYPE      DEVICE 
eno1               ce6dd316-b6a9-4e58-9032-e0c1b3fcf1b0  ethernet  eno1   
virbr0             7bbff2fd-12e1-4e9c-8cd6-9f0bd14ad35e  bridge    virbr0 
br0                6d7894dc-ccb0-45a6-9347-940128de7efa  bridge    br0    
bridge-slave-eno1  b1788643-bdbb-4f24-adde-265462f172fc  ethernet  --

查看網絡：

[root@server ~]# ifconfig 
eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.100  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::548:8ed0:e2e:51cd  prefixlen 64  scopeid 0x20<link>
        ether 00:d8:61:12:34:61  txqueuelen 1000  (Ethernet)
        RX packets 4247  bytes 1606152 (1.5 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1895  bytes 350509 (342.2 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 16  memory 0xdf000000-df020000

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 1000  (Local Loopback)
        RX packets 220  bytes 20176 (19.7 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 220  bytes 20176 (19.7 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:cc:69:3d  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

關閉eno1：

[root@server ~]# nmcli connection down eno1 
Connection 'eno1' successfully deactivated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/2)

打開網橋br0：

[root@server ~]# nmcli connection up br0
Connection successfully activated (master waiting for slaves) (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/4)

注意：如果這個過程是遠程SSH或VNC操作的，需要耐心等信息返回～

查看連接（可以看到網橋已經生效）：

[root@server ~]# nmcli connection 
NAME               UUID                                  TYPE      DEVICE 
br0                6d7894dc-ccb0-45a6-9347-940128de7efa  bridge    br0    
bridge-slave-eno1  b1788643-bdbb-4f24-adde-265462f172fc  ethernet  eno1   
virbr0             7e63fed2-6839-43e0-9580-636729506f8f  bridge    virbr0 
eno1               ce6dd316-b6a9-4e58-9032-e0c1b3fcf1b0  ethernet  --

查看網絡：

[root@server ~]# ifconfig 
br0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.100  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::d0f2:879:9ecf:f907  prefixlen 64  scopeid 0x20<link>
        ether 00:d8:61:12:34:61  txqueuelen 1000  (Ethernet)
        RX packets 200  bytes 74916 (73.1 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 72  bytes 10614 (10.3 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 00:d8:61:12:34:61  txqueuelen 1000  (Ethernet)
        RX packets 4526  bytes 1697104 (1.6 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 2026  bytes 367827 (359.2 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 16  memory 0xdf000000-df020000

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 1000  (Local Loopback)
        RX packets 256  bytes 23716 (23.1 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 256  bytes 23716 (23.1 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:cc:69:3d  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

網橋可以使用了。如不再使用網橋，可關閉，再重新打開eno1即可
————————————————
版權聲明：本文為CSDN博主「智識訓練營」的原創文章，遵循CC 4.0 BY-SA版權協議，轉載請附上原文出處鏈接及本聲明。
原文鏈接：//blog.csdn.net/mdykj33/article/details/102638382

 

 

版權聲明：本文內容系天翼云實名用戶自發貢獻，版權歸原作者所有，天翼云開發者社區不擁有其著作權，亦不承擔相應法律責任，原文鏈接：//blog.csdn.net/mdykj33/article/details/102638382

作者：CSDN博主「智識訓練營」，如需轉載，請聯系作者。

原文出處及轉載信息見文內詳細說明，如有疑問或爭議，請聯系ctyunbbs@chinatelecom.cn刪除。

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