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Fat AP and Cloud AP V200R010C00 Command Reference

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
arp static

arp static

Function

The arp static command configures static ARP entries.

The undo arp static command deletes static ARP entries.

By default, the ARP mapping table is empty and address mappings are obtained using dynamic ARP.

Format

arp static ip-address mac-address [ vid vlan-id [ interface interface-type interface-number ] ]

undo arp static ip-address [ mac-address ] [ vid vlan-id interface interface-type interface-number ]

Parameters

Parameter Description Value
ip-address Specifies the IP address in a static ARP entry. The value is in dotted decimal notation.
mac-address Specifies the MAC address of a static ARP entry. The value is in H-H-H format. An H contains four hexadecimal numbers.
interface interface-type interface-number Specifies the outbound interface of a static ARP packet.
  • interface-type specifies the interface type.
  • interface-number specifies the interface number.
-
vid vlan-id Specifies the ID of the VLAN to which a static ARP entry belongs. The value is an integer ranging from 1 to 4094.

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

To ensure security and facilitate management, you may need to configure mappings between IP addresses and MAC addresses. In this case, run the arp static command to configure a fixed ARP mapping entry that maps an IP address to a MAC address.

A static ARP entry cannot be dynamically modified.

A static ARP entry is used in the following situations:
  • Direct the packets whose destination IP addresses are not on the local network segment to a gateway on the local network segment so that the packets can be forwarded by the gateway.

  • Bind the destination IP addresses of invalid packets to a nonexistent MAC address so that the invalid packets are filtered out.

Precautions

If a static ARP entry to be created exists, the system updates the entry.

After a static ARP entry is configured, it cannot be dynamically updated.

The IP address specified by ip-address and the IP address of the outbound interface specified by interface must be on the same network segment.

Example

# Configure a static ARP entry that maps the IP address 10.0.0.1 to the MAC address aaaa-fccc-1212.

<Huawei> system-view
[Huawei] arp static 10.0.0.1 aaaa-fccc-1212
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Updated: 2019-11-21

Document ID: EDOC1100064352

Views: 207270

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