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NE20E-S2 V800R010C10SPC500 Configuration Guide - IP Services 01

This is NE20E-S2 V800R010C10SPC500 Configuration Guide - IP Services
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Example for Configuring Static ARP

Example for Configuring Static ARP

This example provides an example for configuring static ARP.

Networking Requirements

ARP is a basic link layer protocol that maps devices' IP addresses to MAC addresses. ARP is simple to use but does not have any security guarantee. Attackers may send forged ARP packets to attack networks, interrupting normal services or even breaking devices down. Therefore, carriers want to enhance backbone network security.

As shown in Figure 2-6, hosts connect to the backbone network through routers. To protect the devices on the backbone network against ARP attacks and ensure stable data transmission, configure static ARP on routers.

Figure 2-6 Configuring static ARP



Configuration Roadmap

The configuration roadmap is to configure static ARP entries on routers. These entries will not be aged or overwritten by dynamic ARP entries so that user data can be stably transmitted.

Data Preparation

To complete the configuration, you need IP addresses and MAC addresses between which mappings need to be set up.


  1. Configure static ARP entries on Device A.

    <HUAWEI> system-view
    [~HUAWEI] sysname DeviceA
    [*HUAWEI] commit
    [~DeviceA] arp static 0000-0a41-0200
    [*DeviceA] arp static 0000-0a41-0202
    [*DeviceA] arp static 0000-0a41-0204
    [*DeviceA] commit
    Repeat this step for Device B. For configuration details, see Configuration Files in this section.

  2. Verify the configuration.

    # Run the display arp all command on Device A to check configured ARP entries.
    <DeviceA> display arp all
                                             VLAN/CEVLAN PVC
    ------------------------------------------------------------------------------        0000-0a41-0200           S--        0000-0a41-0202           S--        0000-0a41-0204           S--
    Total:3         Dynamic:0       Static:3    Interface:0   

Configuration Files

  • Device A configuration file

    sysname DeviceA
    arp static 0000-0a41-0200
    arp static 0000-0a41-0202
    arp static 0000-0a41-0204
  • Device B configuration file

    sysname DeviceB
    arp static 0000-0a41-0300
    arp static 0000-0a41-0302
    arp static 0000-0a41-0304
Updated: 2019-01-02

Document ID: EDOC1100055376

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