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Configuration Guide - Security

S7700 and S9700 V200R011C10

This document describes the configurations of Security, including ACL, reflective 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, separating the management plane from the service plane, security risks.
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Applying a Basic ACL6

Applying a Basic 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 Telnet, FTP, and routing.

Procedure

  1. Apply a basic ACL6.

    Table 1-26 describes the application of a basic ACL6.

    Table 1-26  Applying a basic ACL6
    Service Category Usage Scenario How ACL6s 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 S7700 and S9700 V200R011C10 Configuration Guide - QoS.

    • Traffic policy: See MQC Configuration in the S7700 and S9700 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 S7700 and S9700 V200R011C10 Configuration Guide - Basic Configuration.

    • FTP: See Managing Files When the Device Functions as an FTP Server in "File Management" in the S7700 and S9700 V200R011C10 Configuration Guide - Basic Configuration.

    • SFTP: See Managing Files When the Device Functions as an SFTP Server in "File Management" in the S7700 and S9700 V200R011C10 Configuration Guide - Basic Configuration.

    • SNMP: See (Optional) Restricting Management Rights of the NMS (SNMPv1 and SNMPv2c) and (Optional) Restricting Management Rights of the NMS (SNMPv3) in "SNMP Configuration" in the S7700 and S9700 V200R011C10 Configuration Guide - Network Management and Monitoring.

    Route filtering

    ACL6s can be applied to various dynamic routing protocols to filter advertised and received routes and multicast groups.

    For example, you can apply an ACL6 to a routing policy to prevent the device from sending routes of a network segment to the neighboring router.

    • BGP: See Controlling the Advertisement of BGP Routes and Controlling the Receiving of BGP Routes in "BGP Configuration" in the S7700 and S9700 V200R011C10 Configuration Guide - IP Unicast routing.

    • IS-IS (IPv6): See Configuring IS-IS to Advertise Specified External Routes to an IS-IS Routing Domain and Adding Specified IS-IS Routes to an IPv6 Routing Table in "IPv6 IS-IS Configuration" in the S7700 and S9700 V200R011C10 Configuration Guide - IP Unicast routing.

    • OSPFv3: See Configuring OSPFv3 to Filter the Received Routes and Configuring OSPFv3 to Import External Routes in "OSPFv3 Configuration" in the S7700 and S9700 V200R011C10 Configuration Guide - IP Unicast routing.

    • RIPng: See Configuring a RIPng Process to Import External Routes and Controlling the Receiving of RIPng Routes in "RIPng Configuration" in the S7700 and S9700 V200R011C10 Configuration Guide - IP Unicast routing.

    • Multicast: See (Optional) Configuring the Range of Multicast Groups That an Interface Can Join in "MLD Configuration" and Configuring an RP in "IPv6 PIM Configuration" in the S7700 and S9700 V200R011C10 Configuration Guide - IP Multicast.

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Updated: 2019-04-01

Document ID: EDOC1000178319

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