HP 5920 Series Configuration Guide

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• To delete a static ARP entry converted from a dynamic one, use the undo arp ip-address
[ vpn-instance-name ] command. Use the reset arp all command to delete all ARP entries or the
reset arp static command to delete all static ARP entries.
Configuration procedure
To configure ARP scanning and fixed ARP:
Ste
p
Command
1. Enter system view.
system-view
2. Enter Layer 3 Ethernet interface/Layer 3
Ethernet subinterface/VLAN
interface/Layer 3 aggregate
interface/Layer 3 aggregate subinterface
view.
interface interface-type interface-number
3. Enable ARP scanning.
arp scan [ start-ip-address to end-ip-address ]
4. Return to system view.
quit
5. Enable fixed ARP.
arp fixup
Configuring ARP gateway protection
Configure this feature on interfaces not connected with a gateway to prevent gateway spoofing attacks.
When such an interface receives an ARP packet, it checks whether the sender IP address in the packet is
consistent with that of any protected gateway. If yes, it discards the packet. If not, it handles the packet
correctly.
Configuration guidelines
Follow these guidelines when you configure ARP gateway protection:
• You can enable ARP gateway protection for a maximum of eight gateways on an interface.
• Do not configure both the arp filter source and arp filter binding commands on an interface.
• If ARP gateway protection works with ARP detection, MFF, and ARP snooping, ARP gateway
protection applies first.
Configuration procedure
To configure ARP gateway protection:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter Layer 2 Ethernet interface
and Layer 2 aggregate interface
view.
interface interface-type
interface-number
N/A.

HP 5920 Series Specifications

General

Brand	HP
Model	5920 Series
Category	Switch
Language	English