H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 17)

6
Displaying and maintaining ARP
To do… Use the command… Remarks
Display ARP entries in the
ARP table
display arp [ [ all | dynamic | static ] [ slot
slot-number ] | vlan vlan-id | interface interface-type
interface-number ] [ count | verbose ] [ | { begin |
exclude | include } regular-expression ]
Available in any view
Display the ARP entry for
a specified IP address display arp ip-address [ slot slot-number ] [ verbose ]
[ | { begin | exclude | include } regular-expression ]
Available in any view
Display the age timer for
dynamic ARP entries display arp timer aging [ | { begin | exclude |
include } regular-expression ]
Available in any view
Clear ARP entries from the
ARP table reset arp { all | dynamic | static | slot slot-number |
interface interface-type interface-number }
Available in user view
NOTE:
Clearing ARP entries from the ARP table may cause communication failures.
ARP configuration example
Static ARP entry configuration example
Network requirements
As shown in Figure 3 , hosts are connected to the switch, which is connected to the router through
interface Ethernet 1/1 in VLAN 10. The IP and MAC addresses of the router are 192.168.1.1/24 and
00e0-fc01-0000 respectively.
To prevent malicious users from attacking the switch and enhance security for communications between
the router and switch, configure a static ARP entry for the router on the switch.
Figure 3 Network diagram for configuring static ARP entries