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Configuration Guide - Ethernet Switching

CloudEngine 8800, 7800, 6800, and 5800 V200R003C00

This document describes the configuration of Ethernet services, including configuring MAC address table, link aggregation, VLANs, MUX VLAN, Voice VLAN, VLAN mapping, QinQ, GVRP, VCMP, STP/RSTP/MSTP, VBST, SEP, RRPP, ERPS, LBDT, and Layer 2 protocol transparent transmission.
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Configuring a Blackhole MAC Address Entry

Configuring a Blackhole MAC Address Entry

Context

Blackhole MAC address entries can be used to filter out invalid MAC addresses. To prevent a hacker from using a MAC address to attack a user device or network, configure the MAC address of an untrusted user as the blackhole MAC address. The switch directly discards the received packets where the source or destination MAC address is the blackhole MAC address and the VLAN ID of the packets corresponds to the blackhole MAC address.

NOTE:

The CE6870EI and CE6875EI devices forward Layer 3 packets with the source MAC addresses matching blackhole MAC address entries.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run mac-address blackhole mac-address vlan vlan-id

    A blackhole MAC address entry is configured.

  3. Run commit

    The configuration is committed.

Verifying the Configuration

Run the display mac-address blackhole [ vlan vlan-id ] [ verbose ] command to check configured blackhole MAC address entries.

Translation
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Updated: 2019-05-08

Document ID: EDOC1100004351

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