The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.

1.1 ARPUPDATE option for ifcfg-* files

In this update, the ARPUPDATE option for ifconf-* files is introduced. By default, the value for this setting is yes. However, you can change the value to no, which enables you to disable updating of neighboring computers by using the Address Resolution Protocol (ARP) information about the current network interface controller.