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CCNA Security Portable Command Guide: Network Foundation Protection

Oct 25, 2012

📄 Contents

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Threats Against the Network Infrastructure
Cisco Network Foundation Protection Framework
Control Plane Security
Management Plane Security
Data Plane Security

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CCNA Security (640-554) Portable Command Guide

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Control Plane Security

Control plane security can be implemented using the following features:

Cisco AutoSecure	Cisco AutoSecure provides a one-step device lockdown feature to protect the control plane and the management and data planes. It is a script that is initiated from the command-line interface (CLI) to configure the security posture of routers and disables nonessential system processes and services. It first makes recommendations to address security vulnerabilities and then modifies the router configuration.
Routing protocol authentication	Neighbor authentication prevents a router from accepting fraudulent routing updates. Most routing protocols support neighbor authentication.
CoPP	Control Plane Policing (CoPP) is used on higher-end Cisco devices with route processors. It is a Cisco IOS feature designed to enable users to manage the flow of traffic managed by the route processor of their network devices.

Control Plane Policing

CoPP is designed to prevent unnecessary traffic from overwhelming the route processor. The CoPP feature treats the control plane as a separate entity with its own ingress (input) and egress (output) ports. Because the CoPP feature treats the control plane as a separate entity, a set of rules can be established and associated with the ingress and egress ports of the control plane.

CoPP consists of the following features:

CoPP	Control Plane Policing lets users configure a QoS filter that manages the traffic flow of control plane packets. This protects the control plane against reconnaissance and DoS attacks.
CPPr	Control Plane Protection is an extension of CoPP but allows a finer policing granularity. For example, CPPr can filter and rate-limit the packets that are going to the control plane of the router and discard malicious and error packets (or both).
Control Plane Logging	The Control Plane Logging feature enables logging of the packets that CoPP or CPPr drop or permit. It provides the logging mechanism that is needed to deploy, monitor, and troubleshoot CoPP features efficiently.

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