H3C Technologies H3C S10500 Series Switches - Manual (Page 19)

8
To do… Use the command… Remarks
Display the ARP entries for a
specified VPN instance
display arp vpn-instance vpn-instance-name
[ count ] [ | { 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 (in standalone mode)
reset arp { all | dynamic | static | slot
slot-number | interface interface-type
interface-number }
Available in user view
Clear ARP entries from the ARP
table (in IRF mode)
reset arp { all | dynamic | static | chassis
chassis-number 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 4 , hosts are connected to the switch, which is connected to the router through
interface GigabitEthernet 1/0/1 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 4 Network diagram for configuring static ARP entries
Configuration procedure
Configure the switch