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Configuration Guide - Security

S1720, S2700, S5700, and S6720 V200R011C10

This document describes the configurations of Security, including 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, MPAC, separating the management plane from the service plane, security risks, PKI.
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(Optional) Configuring the Whitelist for Port Attack Defense

(Optional) Configuring the Whitelist for Port Attack Defense

Context

By default, a device calculates the rates of protocol packets received by all interfaces, and traces the source as well as limits the rate of attack packets. Sometimes, network-side interfaces need to receive a lot of valid protocol packets. You should add these interfaces or network nodes that connect to these interfaces to the whitelist. The device does not trace the source or limit the rate of protocol packets received by the interfaces in the whitelist.

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 whitelist whitelist-number { acl acl-number | interface interface-type interface-number }

    The whitelist is configured.

    A maximum of 16 whitelists can be configured on the device.

    The ACL referenced by a whitelist can be a basic ACL, an advanced ACL, or a Layer 2 ACL. For details about ACL configuration, see ACL Configuration.

    By default, no whitelist is configured for port attack defense. After a port is configured as a DHCP trusted port using the dhcp snooping trusted command, the device will not perform attack defense operations on the DHCP packets received by this port, regardless of whether port attack defense is enabled on this port.

    NOTE:

    All the packets matching an ACL referenced by a whitelist are considered to be valid packets regardless of whether the ACL rule is permit or deny.

    If an ACL has no rule, the whitelist that references the ACL does not take effect.

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Updated: 2019-03-28

Document ID: EDOC1000178177

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