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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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Applying a User-Defined ACL

Applying a User-Defined ACL


After an ACL is configured, it must be applied to a service module so that the ACL rules can be delivered and take effect.

Usually, a user-defined ACL is applied to a traffic policy or simplified traffic policy so that the device can deliver ACL rules globally, in a VLAN, or on an interface to filter packets to be forwarded.


  1. Apply a user-defined ACL.

    Table 2-22 describes the application of a user-defined ACL.

    Table 2-22  Applying a user-defined ACL
    Service Category Usage Scenario How ACLs Are Used

    Filtering packets to be forwarded

    The device filters received packets globally, on an interface, or in a VLAN, and then discards, modifies priorities of, or redirects the filtered packets.

    For example, you can use ACL to reduce the service level for the bandwidth-consuming services, such as P2P downloading and online video. When network congestion occurs, these packets are discarded first.

    • Simplified traffic policy: See ACL-based Simplified Traffic Policy Configuration in the S1720, S2700, S5700, and S6720 V200R011C10 Configuration Guide - QoS.

    • Traffic policy: See MQC Configuration in the S1720, S2700, S5700, and S6720 V200R011C10 Configuration Guide - QoS.

Updated: 2019-09-23

Document ID: EDOC1000178177

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