QEMU桥接配置 | 易学教程

1、安装app-emulation/qemu、sys-apps/usermode-utilities、net-misc/bridge-utils、app-emulation/libvirt

2、配置/etc/conf.d/net文件

1）vi /etc/conf.d/net

# Interface tap0

config_tap0=null
tuntap_tap0="tap"

# Interface br0
config_br0="192.168.1.1/24"
bridge_br0="tap0"
rc_net_br0_need="net.tap0"

2）设置br0和tap0接口

cd /etc/init.d

ln -s net.lo net.tap0

ln -s net.lo net.br0

rc-update add net.br0 default

/etc/init.d/net.br0 start

3、设置转发和防火墙

1）开启转发

vi /etc/sysctl.conf

net.ipv4.ip_forward=1

sysctl -p

2）设置防火墙

rc-update add iptables default

iptables -A FORWARD -i br0 -o wlan0 -j ACCEPT

iptables -t nat -A POSTROUTING -o wlan0 -j MASQUERADE

iptables -A FORWARD -i wlan0 -o br0 -m state --state RELATED,ESTABLISHED -j ACCEPT

rc-service iptables save

4、DNS局域网设置

1）安装dnsmasq

2）编辑/etc/dnsmasq.conf

# We want dnsmasq to listen on br0 interface.
interface=br0 # We provide a dhcp range for dnsmasq
dhcp-range=192.168.1.50,192.168.1.150,12h

3）开启服务

/etc/init.d/dnsmasq start

5、设置qemu脚本

#!/bin/sh
# This script created by AQEMU
/usr/bin/qemu-system-x86_64 -enable-kvm \
   -cpu host \
   -m 2048M \
   -drive file=/home/cw/Documents/qemu/CentOS/CentOS.img,if=virtio \
   -boot once=c,menu=off \
   -netdev tap,ifname=tap0,script=no,downscript=no,id=mynet0 -device virtio-net,netdev=mynet0,mac=82:e9:67:33:ad:d0 \
   -rtc base=localtime \
   -monitor stdio \
   -name "centos" \
   $@

本文分享自微信公众号 - Linux那些事儿（chenwei19900230）。
如有侵权，请联系 support@oschina.cn 删除。
本文参与“OSC源创计划”，欢迎正在阅读的你也加入，一起分享。

来源：oschina

链接：https://my.oschina.net/u/4612048/blog/4487266

标签

dnsmasq