nat gratuitous-arp send auto

Function

The nat gratuitous-arp send auto command enables a device to send gratuitous ARP packets.

The undo nat gratuitous-arp send auto command disables a device from sending gratuitous ARP packets.

The function is disabled by default.

This command is supported only on the NetEngine 8000 F1A.

Format

nat gratuitous-arp send auto

undo nat gratuitous-arp send auto

Parameters

None

Views

100GE-Trunk member interface view, 100GE interface view, 10G LAN interface view, 10G WAN interface view, Eth-Trunk sub-interface view, Eth-Trunk member Layer 3 interface view, Eth-Trunk member interface view, Eth-Trunk interface view, Eth-Trunk interface view, GE-Trunk member Layer 3 interface view, GE-Trunk member interface view, Layer 3 GE interface view, GE optical interface view, GE interface view, GE electrical interface view, Global VE sub-interface view, VBDIF interface view, VE sub-interface view, VLANIF interface view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
nat	write

Usage Guidelines

Usage Scenario

When a CGN public IP address and the public network-side interface address are on the same network segment and the CGN cold backup status changes, to rapidly update ARP information, run the nat gratuitous-arp send auto command on a network-side interface to send gratuitous ARP packets once the interface goes Up.

Precautions

This function can be configured on a maximum of 256 interfaces. This function cannot be configured on QinQ termination sub-interfaces, dot1q termination sub-interfaces, super VLAN interfaces, and flexible access sub-interfaces.

Example

# Enable GE 0/1/0 to send gratuitous ARP packets.

<HUAWEI> system-view
[~HUAWEI] interface GigabitEthernet0/1/0
[~HUAWEI-GigabitEthernet0/1/0] nat gratuitous-arp send auto