linux/centos6.5 network hint determining if IP address * is already on use for device eth0

System: CentOS 6.5

Today, the following problems were found when restarting the NIC

[Email protected] ~]# service network restart

Shutting down interface eth0: [OK]

Close Loopback interface: [OK]

Eject loopback interface: [OK]

Pop-up interface eth0:determining if IP address 192.168.100.201 is already on use for device eth0 ...

Determine

Began to think it is the IP address conflict, but after the investigation, found that only this server used this IP address, and then query the relevant information, found that the centos6.5 by default, the Arpcheck is turned off to resolve

# sed-i "Arpcheck=no" >>/etc/sysconfig/network-scripts/ifcfg-eth0

Then restart the NIC and you'll find everything's fine.

[Email protected] ~]# service network restart

Shutting down interface eth0: [OK]

Close Loopback interface: [OK]

Eject loopback interface: [OK]

Popup interface eth0: [OK]

This article is from the "Doiido" blog, make sure to keep this source http://doiido.blog.51cto.com/5503054/1554482

linux/centos6.5 network hint determining if IP address * is already on use for device eth0