在配置vmbox虚拟机的时候，为了方便，经常采用复制虚拟机的操作，但是复制后的虚拟机即便采用了桥接网络的方式，还是无法正常连接局域网
后来网上查了一下，可以重新设置eth
首先查看文件 /etc/udev/rules.d/70-persistent-net.rules 内容类似如下：
# This file was automatically generated by the /lib/udev/write_net_rules # program, run by the persistent-net-generator.rules rules file. # # You can modify it, as long as you keep each rule on a single # line, and change only the value of the NAME= key. # PCI device 0x8086:0x100e (e1000) SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="08:00:27:92:5e:f2", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0" # PCI device 0x8086:0x100e (e1000) SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="08:00:27:5a:00:b2", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"
记住eth1 中的mac地址 "08:00:27:5a:00:b2"
然后编辑文件 vim /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth1 HWADDR=08:00:27:5a:00:b2 TYPE=Ethernet #UUID=62b19c7b-4fbd-45ef-b73f-73d9bf664f69 ONBOOT=yes NM_CONTROLLED=yes BOOTPROTO=static IPADDR=192.168.102.6 NETMASK=255.255.255.0 GATEWAY=192.168.102.1
将原来的eth0，改为eth1，并将HWADDR修改该为上面文件里的mac地址
保存退出后
重启网络
service network restart
即可完成内网的联通
测试输入ifconfig回车，如果能看到刚才文件里设置的ip，标示设置成功！
VMware启动CentOS 6.5后将网卡eth1重新设置为eth0
原文：http://power9li.blog.51cto.com/8267716/1597381