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CLI-based Configuration Guide - Security

AR100, AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R010

This document provides the basic concepts, configuration procedures, and configuration examples in different application scenarios of the network management feature supported by the device.
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Configuring Large ICMP Packet Attack Defense

Configuring Large ICMP Packet Attack Defense

Context

For large ICMP packet attack defense, you only need set the maximum packet length. When the length of an ICMP packet exceeds the limit, the firewall considers the packet as an attack packet and discards it.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run firewall defend large-icmp max-length length

    The maximum length of ICMP packet is set.

    By default, the maximum length of an ICMP packet is 4000 bytes.

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Updated: 2019-08-07

Document ID: EDOC1100034077

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