R2511-HP MSR Router Series Layer 3 - IP Services Configuration Guide(V5)

6
Displaying and maintaining ARP
CAUTION:
Clearing ARP entries from the ARP table might cause communication failures.
Task Command Remarks
Display ARP entries in the ARP
table.
display arp [ [ all | dynamic | static ] | 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
specific IP address.
display arp ip-address [ verbose ] [ | { begin |
exclude | include } regular-expression ]
Available in any view.
Display the ARP entries for a
specific VPN instance.
display arp vpn-instance vpn-instance-name
[ count ] [ | { begin | exclude | include }
regular-expression ]
Available in any view.
Display the aging timer of
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 | interface
interface-type interface-number }
Available in user view.
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.