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CLI-based Configuration Guide - Security

AR500, AR510, and AR530 V200R007

This document describes the configurations of Security, including AAA, DAA,NAC, BRAS Access, ACL, Firewall, Deep Security Defense, Local Attack Defense;Attack Defense, Traffic Suppression, ARP Security, Port Security, DHCP Snooping, IPSG, URPF, PKI, SSL, HTTPS, Keychain, separating the management plane from the service plane, security risks.
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Default Configuration

Default Configuration

Table 7-1 and Table 7-2 list the default configurations for local attack defense. The default configurations can be modified as required.

Table 7-1  Default configuration for CPU attack defense
Parameter Default Setting
CPU attack defense policy CPU attack defense policy named default
Blacklist None
Rate limiting and protocol priority The CPU attack defense policy limits the rates of different types of packets sent to the CPU, and the default rate and priority are the same as those in the default policy. To view the default rate and priority settings, run the display cpu-defend configuration command.
Rate limiting


Rate limits used after ALP is enabled

The default rate limit of SSH, Telnet, SSHv6, Telnetv6, HTTP, FTP or BGP packets.

  • SSH: 512 pps
  • Telnet: 512 pps
  • SSHv6: 512 pps
  • Telnetv6: 512 pps
  • HTTP: 512pps
  • FTP: 1024pps
  • BGP: 512pps

Modified the default rate limit used the application-apperceive command.

Table 7-2  Default configuration for attack source tracing
Parameter Default Setting
Attack defense policy Attack defense policy named default
Automatic attack source tracing Disabled
Threshold for attack source tracing 128 pps
Attack source tracing mode Attack source tracing based on source MAC addresses, source IP addresses, or a combination of source ports and VLANs
Types of traced packets

ARP, DHCP, ICMP, IGMP, Telnet, TCP, and TTL-expired packets

Alarm function for attack source tracing Disabled
Alarm threshold for attack source tracing 128 pps
Punish function for attack source tracing Disabled
Updated: 2019-05-25

Document ID: EDOC1000097287

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