Administrators are advised to apply the appropriate updates.
It is critical to prevent unauthorized direct communication to network devices. Restrict network traffic destined for the network infrastructure to protect against reconnaissance and DoS attacks. For configuration details, consult Protecting Your Core: Infrastructure Protection Access Control Lists
Apply hardware rate limiter features to limit packets that require processing by the device CPU to mitigate DoS attacks. See the vendor documentation for specific configuration instructions. For hardware rate limiting configuration details, consult the Cisco Catalyst 6500 Denial of Service (DoS) Protection Configuration Guide
Administrators are advised to allow only privileged users to access administration or management systems.
Administrators are advised to monitor affected systems.