Configuring Arp Gateway Protection; Configuration Guidelines; Configuration Procedure; Configuration Example - HPE FlexNetwork 10500 Series Security Configuration Manual

Step
1. Enter system view.
2. Enter interface view.
3. Trigger an ARP scanning.
4. Return to system view.
5. Convert existing dynamic ARP entries to
static ARP entries.

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 attack detection, MFF, ARP snooping, and ARP
fast-reply, ARP gateway protection applies first.

Configuration procedure

To configure ARP gateway protection:
Step
1. Enter system view.
2. Enter Layer 2 Ethernet interface
and Layer 2 aggregate interface
view.
3. Enable ARP gateway protection
for the specified gateway.

Configuration example

Network requirements
As shown in
that Device B intends to send to Device A is sent to Host B.
Configure Device B to block such attacks.
Figure 141, Host B launches gateway spoofing attacks to Device B. As a result, traffic
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
527
Remarks
N/A
N/A
By default, ARP gateway
protection is disabled.