H3C MSR Series Command Reference

1108
Source MAC-based ARP attack detection
commands
arp source-mac
Use arp source-mac to enable the source MAC-based ARP attack detection feature and specify a
handling method.
Use undo arp source-mac to disable the source MAC-based ARP attack detection feature.
Syntax
arp source-mac { filter | monitor }
undo arp source-mac [ filter | monitor ]
Default
The source MAC-based ARP attack detection feature is disabled.
Views
System view
Predefined user roles
network-admin
Parameters
filter: Generates log messages and discards subsequent ARP packets from the MAC address.
monitor: Only generates log messages.
Usage guidelines
Configure this feature on the gateways.
This feature checks the number of ARP packets delivered to the CPU. If the number of ARP packets
from the same MAC address within 5 seconds exceeds a threshold, the device takes the
preconfigured method to handle the attack.
If you do not specify both the filter and monitor keywords in the undo arp source-mac command,
the command disables this feature.
Examples
# Enable the source MAC-based ARP attack detection feature and specify the filter handling method.
<Sysname> system-view
[Sysname] arp source-mac filter
arp source-mac aging-time
Use arp source-mac aging-time to set the aging time for ARP attack entries.
Use undo arp source-mac aging-time to restore the default.
Syntax
arp source-mac aging-time time
undo arp source-mac aging-time
Default
The aging time for ARP attack entries is 300 seconds.

H3C MSR Series Specifications

General

Category	Network Router
IPv6 Support	Yes
Dimensions	Varies by model
Weight	Varies by model
Product Type	Modular Router
Ports	Varies by model
WAN Interfaces	Varies by model
Firewall	Yes
QoS	Yes
Wireless Support	Varies by model
USB Ports	Varies by model
Console Port	Yes
Power Supply	Varies by model
Redundancy	Varies by model
Operating Temperature	0°C to 45°C
Storage Temperature	-40°C to 70°C
Humidity	5% to 95% non-condensing
Series	MSR
Certifications	CE, FCC, RoHS