Fedora Linux : Always got wrong IP configured

while the network configuration in the ifcfg-eth0 is as follows:

IPADDR=x.x.31.231
BROADCAST=x.255.255.255
NETWORK=x.x.31.0
NETMASK=255.255.255.0
GATEWAY=x.x.31.1

after /sbin/ifup eth0

/sbin/ifconfig eth0 displays a magic configuration as :


eth0      Link encap:Ethernet  HWaddr xxxxxx
            inet addr:x.x.35.200  Bcast:x.x.35.255  Mask:255.255.255.128
           .........................

fiddling over and over (ifdown then ifup, and also including  to restart  network and NetManager services), just no damn a use!  The system always applies this weird IP configuration !!

Finally, the bug got found by just  "grep "x.x.35.200" /etc/sysconfig/network-scripts/* ", there is another file
ifcfg-reference there that contains this surprising configuration above.

 Move this extraneous file, either deleting or moving to other directory, the problem  got rid of !