修改eth5为eth0

我的以前是eth5
root@ubuntu:/etc/udev/rules.d# ifconfig


eth5      Link encap:Ethernet  HWaddr 00:0c:29:c6:bc:7c  
          inet addr:192.168.16.25  Bcast:192.168.16.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fec6:bc7c/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1111 errors:0 dropped:0 overruns:0 frame:0
          TX packets:871 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:152479 (152.4 KB)  TX bytes:106075 (106.0 KB)
          Interrupt:18 Base address:0x2000 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:80 errors:0 dropped:0 overruns:0 frame:0
          TX packets:80 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:4000 (4.0 KB)  TX bytes:4000 (4.0 KB)
更改如下文件，看好你的mac地址
root@ubuntu:/etc/udev/rules.d# vim /etc/udev/rules.d/70-persistent-net.rules 


# 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.



# PCI device 0x1022:0x2000 (pcnet32)


SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:0e:ad:8a", ATTR{type}=="1", KERNEL=="eth*", NAME="eth5"

# PCI device 0x1022:0x2000 (pcnet32)


SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:26:0b:66", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"

# PCI device 0x1022:0x2000 (pcnet32)


SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:d5:16:28", ATTR{type}=="1", KERNEL=="eth*", NAME="eth2"

# PCI device 0x1022:0x2000 (pcnet32)


SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:fe:47:db", ATTR{type}=="1", KERNEL=="eth*", NAME="eth3"

# PCI device 0x1022:0x2000 (pcnet32)


SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:3e:b1:4f", ATTR{type}=="1", KERNEL=="eth*", NAME="eth4"
下面这里mac地址我对应的，是eth5，我改为eth0了
# PCI device 0x1022:0x2000 (pcnet32)


SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:c6:bc:7c", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
root@ubuntu:/etc/udev/rules.d# init 6

重启后从新登录

root@ubuntu:~# ifconfig


eth0      Link encap:Ethernet  HWaddr 00:0c:29:c6:bc:7c  
          inet addr:192.168.16.25  Bcast:192.168.16.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fec6:bc7c/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:34 errors:0 dropped:0 overruns:0 frame:0
          TX packets:82 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:8409 (8.4 KB)  TX bytes:11509 (11.5 KB)
          Interrupt:18 Base address:0x2000 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:108 errors:0 dropped:0 overruns:0 frame:0
          TX packets:108 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:6124 (6.1 KB)  TX bytes:6124 (6.1 KB)