[root@olinfa961 opt]# ifconfig
eth2 Link encap:Ethernet HWaddr 00:0C:29:80:46:66
inet addr:192.168.0.109 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fe80:4666/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:412 errors:0 dropped:0 overruns:0 frame:0
TX packets:21 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:53002 (51.7 KiB) TX bytes:4314 (4.2 KiB)
eth3 Link encap:Ethernet HWaddr 00:0C:29:80:46:70
inet addr:192.168.146.110 Bcast:192.168.146.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fe80:4670/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:548 errors:0 dropped:0 overruns:0 frame:0
TX packets:269 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:51810 (50.5 KiB) TX bytes:32119 (31.3 KiB)
Interrupt:16 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:4 errors:0 dropped:0 overruns:0 frame:0
TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:240 (240.0 b) TX bytes:240 (240.0 b)
actually there's no such device in your machine. so you should revise it.
Write down the MAC Address
Device Name Mac Address the right Device Name
eth2 ===> 00:0C:29:80:46:66 ==> eth0
eth3 ===> 00:0C:29:80:46:70 ==> eth1
Modify the file /etc/udev/rules.d/70-persistent-net.rules , keep the top 2 non-commented lines .
[root@olinfa961 opt]# cat /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, and change only the value of the NAME= key.
# PCI device 0x8086:0x100f (e1000)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:80:46:66", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x1022:0x2000 (pcnet32)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:80:46:70", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"
3. Modify the ifcfg-eth0 and ifcfg-eth1 files:
[root@olinfa961 opt]# cd /etc/sysconfig/network-scripts/
[root@olinfa961 network-scripts]# ls
ifcfg-eth0 ifdown-eth ifdown-ppp ifup-aliases ifup-isdn ifup-routes net.hotplug
ifcfg-eth1 ifdown-ippp ifdown-routes ifup-bnep ifup-plip ifup-sit network-functions
ifcfg-lo ifdown-ipv6 ifdown-sit ifup-eth ifup-plusb ifup-tunnel network-functions-ipv6
ifdown ifdown-isdn ifdown-tunnel ifup-ippp ifup-post ifup-wireless
ifdown-bnep ifdown-post ifup ifup-ipv6 ifup-ppp init.ipv6-global
[root@olinfa961 network-scripts]# cat ifcfg-eth0
DEVICE="eth0"
HWADDR="00:0C:29:80:46:66"
NM_CONTROLLED="yes"
ONBOOT="yes"