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AR Router Troubleshooting Guide

This Product Documentation provides guidance for maintaining AR Enterprise Router, covering common information collection and fault diagnostic commands, typical fault troubleshooting guide, and troubleshooting.
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Why Are Ping Packets from Non-Huawei Device to AR Discarded But Ping Packets from AR to Non-Huawei Device Not Discarded?

Why Are Ping Packets from Non-Huawei Device to AR Discarded But Ping Packets from AR to Non-Huawei Device Not Discarded?

To protect the CPU and ensure that the CPU can process services, the AR provides the local attack defense function. If the CPU processes a large number of packets or malicious attack packets, services will be interrupted. The AR limits the rate of packets sent to the CPU by default.

If the ping packets from a non-Huawei device to the AR are discarded, set the rate of packets sent to the AR's CPU and ping the AR again:
  1. Run the system-view command to enter the system view.
  2. Run the cpu-defend policy policy-name command to create an attack defense policy and display the attack defense policy view.
  3. Run the packet-type packet-type rate-limit rate-value command to set the rate of packets sent to the CPU.
  4. Run the quit command to return to the system view.
  5. Run the cpu-defend-policy policy-name command to apply the attack defense policy.
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Updated: 2019-05-10

Document ID: EDOC1000079719

Views: 446273

Downloads: 4299

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