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Configuration Guide - Security

CloudEngine 8800, 7800, 6800, and 5800 V200R005C10

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, separating the management plane from the service plane, security risks.
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(Optional) Configuring the Application Server IP Address

(Optional) Configuring the Application Server IP Address


In addition to the gateway, application servers such as the DHCP, multicast, or other types of servers may be deployed on a network. When users access an application server whose IP address is not specified on the MFF-enabled device, the MFF-enabled device forwards user traffic to the gateway. The gateway then forwards it to the application server. This increases uplink traffic, consumes bandwidth, and wastes forwarding resources on the gateway.

To address this problem, specify IP addresses of accessible application servers on the MFF-enabled device. MFF provides a mechanism that is similar to ARP proxy to process such traffic, so users can correctly access all the specified application servers and directly communicate with application servers at Layer 2.


  1. Run system-view

    The system view is displayed.

  2. Run vlan vlan-id

    The VLAN view is displayed.

  3. Run mac-forced-forwarding server server-ip & <1–16>

    The application server IP address is configured.

    By default, no application server IP address is configured.

  4. Run commit

    The configuration is committed.

Updated: 2019-04-20

Document ID: EDOC1100074765

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