Configuring Defense Against ARP Flood Attacks

Configuring defense against ARP flood attacks prevents ARP entries from being exhausted and CPU overload.

Pre-configuration Tasks

Before configuring defense against ARP flood attacks, connect interfaces and set physical parameters for the interfaces to ensure that the physical status of the interfaces is Up.

Configuration Procedure

Operations in the configuration procedure can be performed in any sequence.

Configuring Rate Limiting on ARP Packets based on Source MAC Addresses

Configuring Rate Limiting on ARP Packets based on Source IP Addresses

Configuring Rate Limiting on ARP Packets Globally, in a VLAN, or on an Interface

Configuring Rate Limiting on ARP Miss Messages based on Source IP Addresses

Configuring Rate Limiting on ARP Miss Messages Globally, in a VLAN, or on an Interface

Configuring the Aging Time of Temporary ARP Entries

Configuring the Optimized ARP Reply Function

Configuring the Device Not to Send ARP Packets Destined for Other Devices to the CPU

Configuring Strict ARP Learning

Configuring Interface-based ARP Entry Limiting

Disabling an Interface from Learning ARP Entries

Verifying the ARP Flood Attack Defense Configuration