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Configuration Guide - Security

S9300, S9300E, and S9300X V200R011C10

This document describes the configurations of Security, including ACL, reflective ACL, local attack defense, MFF, attack defense, traffic suppression and storm control, ARP security, port security, DHCP snooping, ND snooping, PPPoE+, IPSG, SAVI, URPF, keychain, separating the management plane from the service plane, security risks.
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Enabling Port Attack Defense

Enabling Port Attack Defense

Context

If an attacker connected to a port initiates a DoS attack, a large number of attack packets sent from this port to the CPU occupy bandwidth. As a result, the CPU cannot process the protocol packets sent from other ports, and services are interrupted.

The port attack defense function effectively limits the number of packets sent to the CPU, and prevents DoS attacks targeting at the CPU.

This function is enabled by default. Before configuring the functions related to port attack defense, enable the port attack defense function.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run cpu-defend policy policy-name

    The attack defense policy view is displayed.

  3. Run auto-port-defend enable

    Port attack defense is enabled.

    By default, the port attack defense function is enabled.

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Updated: 2019-04-01

Document ID: EDOC1000178410

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