H3C Technologies H3C WX6000 Series Access Controllers - Manual (Page 366)

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A non-permanent static ARP entry cannot be directly used for forwarding data. When configuring a
non-permanent static ARP entry, you only need to configure the IP address and MAC address.
When forwarding IP packets, the device sends an ARP request. If the source IP and MAC
addresses in the received ARP reply are the same as the configured IP and MAC addresses, the
device adds the port receiving the ARP reply into the static ARP entry. Now the entry can be used
for forwarding IP packets.
Usually ARP dynamically implements and automatically seeks mappings from IP addresses to MAC
addresses, without manual intervention.
Configuring ARP
Configuring a Static ARP Entry
A static ARP entry is effective when the device works normally. However, when a VLAN or VLAN
interface to which a static ARP entry corresponds is deleted, the entry, if permanent, will be deleted, and
if non-permanent and resolved, will become unresolved.
Follow these steps to configure a static ARP entry:
To do… Use the command… Remarks
Enter system view system-view —
Configure a permanent static
ARP entry
arp static ip-address
mac-address
vlan-id
interface-type interface-number
Required
No permanent static ARP entry is
configured by default.
Configure a non-permanent
static ARP entry arp static ip-address
mac-address
Required
No non-permanent static ARP entry is
configured by default.
The vlan-id argument must be the ID of an existing VLAN which corresponds to the ARP entries. In
addition, the Ethernet port following the argument must belong to that VLAN. A VLAN interface must be
created for the VLAN.
Configuring the Maximum Number of ARP Entries for a VLAN Interface
Follow these steps to set the maximum number of dynamic ARP entries that a VLAN interface can
learn: