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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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(Optional) Configuring the Switch to Forward the ARP Packets from Gateway to Dumb Terminals

(Optional) Configuring the Switch to Forward the ARP Packets from Gateway to Dumb Terminals

Context

When the MFF device connects to dumb terminals (which do not actively send ARP request packets or send ARP request packets at a long interval), the MFF device must transparently transmit the ARP packets from gateway to dumb terminals after the MFF entries are aged out; otherwise, the user ARP entries on gateway are aged out and user services are interrupted. Therefore, when the MFF device connects to dumb terminals, the MFF device needs to be configured to transparently transmit the ARP packets from gateway to dumb terminals.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run vlan vlan-id

    The VLAN view is displayed.

  3. Run mac-forced-forwarding dumb-terminal-compatible

    The device is configured to forward the ARP packets from the gateway to dumb terminals.

    By default, a device does not forward the ARP packets from gateway to dumb terminals.

    NOTE:

    After the MFF device is configured to transparently transmit ARP packets to dumb terminals, run the mac-forced-forwarding static-gateway ip-address &<1-16> command to configure an IP address for the static gateway; otherwise, this function does not take effect.

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Updated: 2019-04-01

Document ID: EDOC1000178410

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