Hi,everybody,I got one problem about CentOS6.5.When I reboot my eth0
service network restart

Shutting down interface eth0: [ OK ]
Shutting down loopback interface: [ OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: Determining if ip address 10.0.1.67 is already in use for device eth0...
[ OK ]

You can see thatetermining if ip address 10.0.1.67 is already in use for device eth0...

I am sure 10.0.1.67 is the only ip address in my network,I wonder how? I got one dhcp server in my network,it's cisco WS-C3750X-24T-L.But when I closed its dhcp feature,the problem is still there.

Help me please!!!!!!!!

is your cent box set to static or dhcp?

post both your eth0 and resolv.conf

please use code flags.

In almost every case that I've seen, there is a conflict.

Could use wireshark on the lan and watch what is going on to see if some box is claiming that ip.

Or check arp if you are on the same segment. Sometimes easier than installing a whole new program.

I got it now.that is a normal message as of CentOS 6. It's nothing to worry about but if you read it quickly it does look like it's complaining that there's a duplicate.