I'm running Centos 6.4 and I have configured the following interfaces with different ip addresses. However, for some reason the eth3 is always binding the ip address of eth0 when doing a network restart or an ifup. How can I make eth3 use the correct ip address?


eth0 Link encap:Ethernet HWaddr D4:AE:52:A4:80:F3
inet addr:192.168.40.2 Bcast:192.168.40.255 Mask:255.255.255.0
inet6 addr: fe80::d6ae:52ff:fea4:80f3/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:26320 errors:0 dropped:0 overruns:0 frame:0
TX packets:194 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1630806 (1.5 MiB) TX bytes:18355 (17.9 KiB)
Memory:da500000-da600000

DEVICE="eth0"
BOOTPROTO="none"
IPADDR=192.168.40.2
NETMASK=255.255.255.0
GATEWAY=192.168.40.1
NM_CONTROLLED="no"
ONBOOT="yes"
TYPE="Ethernet"


eth1 Link encap:Ethernet HWaddr D4:AE:52:A4:80:F4
inet addr:10.0.10.22 Bcast:10.0.10.47 Mask:255.255.255.240
inet6 addr: fe80::d6ae:52ff:fea4:80f4/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:10447860 errors:0 dropped:0 overruns:0 frame:0
TX packets:14763461 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3240198419 (3.0 GiB) TX bytes:1715786142 (1.5 GiB)
Memory:da600000-da700000

DEVICE="eth1"
BOOTPROTO="none"
IPADDR=10.0.10.22
NETMASK=255.255.255.240
NM_CONTROLLED="no"
ONBOOT="yes"
TYPE="Ethernet"


eth2 Link encap:Ethernet HWaddr 00:0A:F7:0F:9C:BC
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:48 Memory:d7800000-d7ffffff

DEVICE="eth2"
BOOTPROTO="none"
NM_CONTROLLED="no"
ONBOOT="no"
TYPE="Fiber"


eth3 Link encap:Ethernet HWaddr 00:0A:F7:0F:9C:BE
inet addr:192.168.40.2 Bcast:192.168.40.255 Mask:255.255.255.0
inet6 addr: fe80::20a:f7ff:fe0f:9cbe/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3 errors:0 dropped:0 overruns:0 frame:0
TX packets:49743 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:192 (192.0 b) TX bytes:2289913 (2.1 MiB)
Interrupt:52 Memory:d8800000-d8ffffff

DEVICE="eth3"
BOOTPROTO="none"
HWADDR=00:0A:F7:0F:9C:BE
IPADDR=10.0.10.36
NETMASK=255.255.255.224
NM_CONTROLLED="no"
ONBOOT="yes"
TYPE="Fiber"

that is your problem, you have not told the system what they are to use. as you are setting them all to static set it to static.

try that it should help.

After entering on all the interface config files the same issue occurs. Interface eth3 is still binding to IP address of eth0. If I leave one of the the interfaces with bootproto=none the interface eth3 will use the IP of that interface using bootproto=none.

this link is a bit old, but the general data is correct.

http://www.cyberciti.biz/faq/rhel-ce...configuration/

this is more up to date and directly from RH. note the change in BOOTPROTO=, looks like they have depreciated STATIC

https://access.redhat.com/site/docum...nterfaces.html

The issue was first solved by recreating the eth 1 and eth3 using the gui utility under preferences. Then we came to the conclusion that was really causing the problem is having the NetworkManager running. We had to turn it off and then chkconfig off.