Display Arp Detection - H3C S5120-SI Series Command Reference Manual

undo arp detection validate [ dst-mac | ip | src-mac ] *
View
System view
Default Level
2: System level
Parameters
dst-mac: Checks the target MAC address of ARP responses. If the target MAC address is all-zero,
all-one, or inconsistent with the destination MAC address in the Ethernet header, the packet is
considered invalid and discarded.
ip: Checks the source and destination IP addresses of ARP packets. The all-zero, all-one or multicast
IP addresses are considered invalid and the corresponding packets are discarded. With this keyword
specified, the source and destination IP addresses of ARP replies, and the source IP address of ARP
requests will be checked.
src-mac: Checks whether the source MAC address of an ARP packet is identical to that in its Ethernet
header. If they are identical, the packet is considered valid; otherwise, the packet is discarded.
Description
Use the arp detection validate command to configure ARP detection based on specified objects. You
can specify one or more objects in one command line.
Use the undo arp detection validate command to remove detected objects. If no keyword is specified,
all the detected objects are removed.
By default, ARP detection based on specified objects is disabled.
Examples
# Enable the checking of the MAC addresses and IP addresses of ARP packets.
<Sysname> system-view
[Sysname] arp detection validate dst-mac src-mac ip

display arp detection

Syntax
display arp detection
View
Any view
Default Level
1: Monitor level
Parameters
None
2-9