本文介绍如何在OracleLinux上移除由libvirtd创建的默认虚拟网络交换机virbr0及其相关iptables规则。同时涵盖了如何处理由lxc容器安装生成的lxcbr0虚拟桥接接口。
摘自：How to Remove virbr0 and lxcbr0 Interfaces on Oracle Linux (文档 ID 2197674.1)
On a Linux host server, the virtual network switch shows up as a network interface.
The default one, created when the libvirt daemon is first installed and started, shows up as virbr0.
It will act as a gateway for the VMs to route traffic.
libvirtd will also insert iptables rules in iptable configuration for proper routing/natting of VM packets.
If you dont want to use libvirtd service,
you can stop the same which will pull all these network configuration from the system for virbr0 interface.
lxcbr0 - is a virtual bridge created when you install and configure lxc container with package lxc.
you may remove this interface if not running any lxc containers.
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