Configuring Arp Gateway Protection; Configuration Procedure; Configuration Guidelines - HP 6125XLG Configuration Manual

Configuration procedure

To configure ARP automatic scanning and fixed ARP:
Step
1. Enter system view.
2. Enter interface view.
3. Enable ARP automatic scanning.
4. Return to system view.
5. Enable fixed ARP.

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
normally.

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 and ARP snooping, ARP gateway protection
•
applies first.
Configuration procedure
To configure ARP gateway protection:
Step
1. Enter system view.
2. Enter Ethernet interface and
aggregate interface view.
3. Enable ARP gateway protection
for a specified gateway.
Command
system-view
interface interface-type interface-number
arp scan [ start-ip-address to end-ip-address ]
quit
arp fixup
Command
system-view
interface interface-type
interface-number
arp filter source ip-address
182
Remarks
N/A
N/A
By default, ARP gateway
protection is disabled.