如何配置qemu的网络

[chenyi852]

#!/bin/bash

#setup tap device
ip link show tap0 &>/dev/null
if [ $? != "0" ]; then
    echo "adding tap device"
    ip tuntap add dev tap0 mode tap
fi

# setup bridge  
ip link show br0 &>/dev/null

if [ $? != "0" ]; then
echo "adding bridge br0"    
brctl addbr br0 
brctl addif br0 tap0    
ifconfig br0 up 
ifconfig br0 192.168.0.1 netmask 255.255.255.0  
ip link set dev tap0 up

如果此时ping不通，检测是否对方能收到收据，如果对方能收到数据，但是不能发出数据，则检测下路由是否配置正确。