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Configuration Guide - Security

S9300, S9300E, and S9300X 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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Configuring the PPPoE Trusted Interface

Configuring the PPPoE Trusted Interface

Context

To prevent bogus PPPoE servers and the security risk caused by PPPoE packets forwarded to non-PPPoE service interfaces, the interface connecting the Switch and the PPPoE server must be configured as the trusted interface. Then PPPoE protocol packets are forwarded to the PPPoE server through the trusted interface only. In addition, only the PPPoE protocol packets received on the trusted interface can be forwarded to the PPPoE client.

NOTE:

The trusted interface controls PPPoE protocol packets at the PPPoE discovery stage only. PPPoE service packets at the PPPoE session stage are not controlled.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number

    The Ethernet interface view is displayed.

  3. Run pppoe uplink-port trusted

    The interface is configured as the trusted interface.

    By default, all interfaces are untrusted interfaces.

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Updated: 2019-04-01

Document ID: EDOC1000178410

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