网桥
搭建网桥之前：
[[email protected] Desktop]# rht-vmctl poweroff desktop ####关掉虚拟机
[[email protected] Desktop]# cd /etc/sysconfig/network-scripts/
[[email protected] network-scripts]# mv ifcfg-br0 ifcfg-enp0s25 /mnt/ ####备份br0
[[email protected] network-scripts]# nm-connection-editor ####删掉system enp0s25 和 bridge enp0s25
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.
** (nm-connection-editor:5872): WARNING **: Unsupported connection type 'generic'
** (nm-connection-editor:5872): WARNING **: Unsupported connection type 'generic'
[[email protected] network-scripts]# vim ifcfg-enp0s25 ####编写配置
DEVICE=enp0s25
ONBOOT=yes
BOOTPROTO=none
IPADDR=172.25.254.42
NETMASK=255.255.255.0
[[email protected] network-scripts]# systemctl stop NetworkManager.service ###关掉服务
[[email protected] network-scripts]# systemctl restart network ####重启网络
[[email protected] network-scripts]# ls
在控制台去安装虚拟机，安装速度很慢
---------------------网桥--------------------
网络桥接：实现共享上网主机和客户机的的可利用软件，还可以用系统自带的网络桥建立连接用双网卡的做主机
[[email protected] ~]# cd /etc/sysconfig/network-scripts/
[[email protected] network-scripts]# vim ifcfg-enp0s25
DEVICE=enp0s25 ####设备名称
ONBOOT=yes ####开启服务设备自动**
BOOTPROTO=none ####网卡工作状态
BRIDGE=br0 ####网卡开启的网桥接口
[[email protected] network-scripts]# vim ifcfg-br0
DEVICE=br0
ONBOOT=yes
BOOTPROTO=none
IPADDR=172.25.254.42
NETMASK=255.255.255.0
TYPE=Bridge ####网络接口类型是桥接
[[email protected] network-scripts]# systemctl stop NetworkManager.service ####服务用来记录网卡位置，关闭此服务
[[email protected] network-scripts]# systemctl restart network ####重启网络
[[email protected] network-scripts]# systemctl start NetworkManager.service ####重启服务
[[email protected] network-scripts]# ifconfig
br0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 172.25.254.42 netmask 255.255.255.0 broadcast 172.25.254.255
inet6 fe80::221:ccff:feb8:6c5d prefixlen 64 scopeid 0x20<link>
ether 00:21:cc:b8:6c:5d txqueuelen 0 (Ethernet)
RX packets 40 bytes 4311 (4.2 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 24 bytes 3144 (3.0 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
命令管理方式
虚拟主机中1.添加：
nm-connection-editor ###删除team0
systemctl stop NetworkManager.service ####服务用来记录网卡位置
brctl show ####显示网桥
brctl addbr br0 ###添加网桥
brctl addif br0 eth0 ####添加网桥的物理接口eth0
ifconfig eth0 up ####开启接口
ifconfig br0 172.25.254.142 netmask 255.255.255.0 ####配置br0
brctl show ####显示网桥
ping 172.25.254.250 ####查看网络状态
2删除:
ifconfig br0 down ####关掉br0
brctl delif br0 eth0 ####断开网桥接口
brctl delbr br0 ###删除网桥
brctl show ####显示网桥