Race condition in the Neighbor Discovery (ND) protocol implementation in Cisco IOS and IOS XE allows remote attackers to cause a denial of service via a flood of Router Solicitation messages on the local network, aka Bug ID CSCuo67770.Referenceshttp://www.securityfocus.com/bid/72797http://www.securitytracker.com/id/1031816http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2015-0632