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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 an Advanced ACL6

Applying an Advanced ACL6

Context

After an ACL6 is configured, it must be applied to a service module so that the ACL6 rules can be delivered and take effect.

Usually, an ACL6 is applied to a traffic policy or simplified traffic policy so that the device can deliver ACL6 rules globally, in a VLAN, or on an interface to filter packets to be forwarded. In addition, an ACL6 can be applied to the service modules such as FTP and multicast.

Procedure

  1. Apply an advanced ACL6.

    Table 2-25 describes the application of an advanced ACL6.

    Table 2-25  Applying an advanced ACL6
    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 ACL6 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.

    Login control

    The device controls access permission of users. Only authorized users can log in to the device, and other users cannot log in without permission. This ensures network security.

    For example, only the administrator is allowed to log in to the device. You can apply an ACL6 to the Telnet service and specify the hosts that are allowed to log in to the device.

    • Telnet: See Enabling the Telnet Server Function in "CLI Login Configuration" in the S1720, S2700, S5700, and S6720 V200R011C10 Configuration Guide - Basic Configuration.

    • FTP: See Managing Files When the Device Functions as an FTP Server in "File Management" in the S1720, S2700, S5700, and S6720 V200R011C10 Configuration Guide - Basic Configuration.

    • SFTP: See Managing Files When the Device Functions as an SFTP Server in "File Management" in the S1720, S2700, S5700, and S6720 V200R011C10 Configuration Guide - Basic Configuration.

    Route filtering

    An ACL6 can be applied to the multicast protocol to filter multicast groups.

    For example, the ACL6 and MLD snooping functions can be used together to prevent hosts in a VLAN from joining a multicast group.

    Multicast: See Configuring a Multicast Group Policy in "MLD Snooping Configuration" and (Optional) Configuring the Range of Multicast Groups That an Interface Can Join in "MLD Configuration" in the S1720, S2700, S5700, and S6720 V200R011C10 Configuration Guide - IP Multicast.

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Updated: 2019-03-28

Document ID: EDOC1000178177

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