Overview:

This article will help you to flush the ARP Cache from ARP table UTM.

Applicable Versions: UTMv2.0 and Above

Procedure: 

What is ARP?

Address Resolution Protocol (ARP) is a protocol for mapping an Internet Protocol address (IP address) to a physical machine address (MAC) that is recognized in the local network. In the UTM appliance, the ARP cache table is displayed on the ARP page under the Network section. The following information is displayed on the ARP page:

1. IP address of the connected device
2. The corresponding MAC ID
3. Interface on which that device is connected
4. Type of entry whether complete, incomplete, dynamic, or static.

You can view, search, add, and delete the entries displayed in the arp table. You can also refresh the page or flush the contents of the arp cache table. The table is updated dynamically or can be refreshed when required.

How to Flush ARP Cache from ARP table - UTM (Flushing the ARP Cache)

It is sometimes necessary to flush the ARP cache if the IP address has changed for a device on the network. Since the IP address is linked to a physical address, the IP address can change but still be associated with the physical address in the ARP cache.

Flushing the ARP Cache allows new information to be gathered and stored in the ARP Cache.

1. Navigate to Network > ARP. The ARP page is displayed with entries of the arp cache table.

2. To flush the entries of the ARP cache table, click Flush Cache. The table will be cleared and the entries refreshed.

Please contact Seqrite Technical Support for more assistance.