SnapGear 560, 585, 580, 640, 710, and 720 appliances before the 3.1.4u5 firmware allow remote attackers to cause a denial of service (complete packet loss) via a packet flood, a different vulnerability than CVE-2006-4613.
https://exchange.xforce.ibmcloud.com/vulnerabilities/32824
http://www.vupen.com/english/advisories/2007/0850
http://www.securityfocus.com/bid/22835
http://www.cyberguard.info/snapgear/releases.html