Displaying And Maintaining Arp; Enabling Arp Defense Against Ip Packet Attack - H3C S7500E Series Operation Manual

Operation Manual – ARP
H3C S7500E Series Ethernet Switches
above process. This protects the device against the IP packet attack efficiently,
reducing the load of the CPU.

1.5.2 Enabling ARP Defense Against IP Packet Attack

The ARP defense against IP packet attack function works for forwarded packets and
those originated by the device.
Follow these steps to configure ARP defense against IP packet attack:
Enter system view
Enable ARP defense
against IP packet attack

1.6 Displaying and Maintaining ARP

Display the ARP entries
in the ARP mapping table
Display the ARP entries
for a specified IP address
Display the aging time for
dynamic ARP entries
Display the configuration
information of ARP
source suppression
Clear ARP entries from
the ARP mapping table
Note:
Executing the reset arp slot slot-id or the reset arp interface interface-type
interface-number command only removes dynamic ARP entries of the specified slot or
port. To remove specified static ARP entries, you need to use the undo arp ip-address
command.
To do...
system-view
arp resolving-route enable
To do...
display arp { { all | dynamic |
static } [ slot slot-id ] | vlan vlan-id
| interface interface-type
interface-number } [ [ verbose ] [ |
{ begin | exclude | include }
string ] | count ]
display arp ip-address [ slot
slot-id ] [ verbose ] [ | { begin |
exclude | include } string ]
display arp timer aging
display arp source-suppression
reset arp { all | dynamic | static |
slot slot-id | interface
interface-type interface-number }
Use the command...
Use the command...
1-9
Chapter 1 ARP Configuration
Remarks
—
Optional
Enabled by default.
Remarks
Available in any
view
Available in any
view
Available in any
view
Available in any
view
Available in user
view