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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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Application Scenarios for Attack Defense

Application Scenarios for Attack Defense

As shown in Figure 9-8, when RouterA undergoes attacks, its CPU usage increases and network services are affected. To provide secure network services, the following attack defense functions are configured on RouterA:

  • Preventing malformed packet attacks

  • Limiting the rate of fragments to protect CPU and device resources

  • Preventing flood attacks:

    • Limiting the rate of TCP SYN packets to protect the CPU
    • Discarding UDP packets sent from specified ports
    • Limiting the rate of ICMP packets to protect the CPU
Figure 9-8  Networking diagram of attack defense

Updated: 2019-08-07

Document ID: EDOC1100034077

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