4000 Router Series Layer 3 - IP Services Configuration Guide

Step Command Remarks

5. Enable periodic sending of

gratuitous ARP packets and

set the sending interval.

arp send-gratuitous-arp [ interval

milliseconds ]

By default, periodic sending of

gratuitous ARP packets is disabled.

Enabling IP conflict notification

By default, if the sender IP address of a received gratuitous ARP packet is being used by the receiving

device, the receiving device sends a gratuitous ARP request, and it displays an error message after it

receives an ARP reply about the conflict.

You can use this command to enable the device to display error message without sending any gratuitous

ARP reply or request for conflict confirmation.

To enable IP conflict notification:

Ste

Command

Remarks

1. Enter system view.

system-view N/A

2. Enable IP conflict

notification.

arp ip-conflict log prompt

By default, IP conflict notification is

disabled.