查看mac地址命令
查看所有网卡命令
nmcli connection show

查看物理网卡mac地址
ifconfig

删除网卡
nmcli connection delete virbr0
禁用libvirtd.service
systemctl disable libvirtd.service
启用libvirtd.service
systemctl enable libvirtd.service
nmcli connection show

ifconfig

nmcli connection delete virbr0
systemctl disable libvirtd.service
systemctl enable libvirtd.service