This bug has been copied from bug #519124 and has been proposed to be backported to 4.8 z-stream (EUS).
Technical note added. If any revisions are required, please edit the "Technical Notes" field accordingly. All revisions will be proofread by the Engineering Content Services team. New Contents: Updating the iputils utilities set used to cause the rdisc (network router discovery daemon) to restart, which in some cases could break the network connectivity. With this update, the rdisc daemon is only restarted if it was running before the update was initiated.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2010-0663.html