Arp Static - 3Com Switch 4500 Family Manual

Use the undo arp check enable command to disable the ARP entry checking function.
With the ARP entry checking function enabled, the switch cannot learn any ARP entry with a multicast
MAC address. Configuring such a static ARP entry is not allowed either; otherwise, the system prompts
error information.
After the ARP entry checking function is disabled, the switch can learn the ARP entry with a multicast
MAC address, and you can also configure such a static ARP entry on the switch.
By default, the ARP entry checking function is enabled.
Examples
# Disable the ARP entry checking function.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] undo arp check enable

arp static

Syntax
arp static ip-address mac-address [ vlan-id interface-type interface-number ]
arp static ip-address mac-address vlan-id (in Ethernet port view)
undo arp ip-address
View
System view, Ethernet port view
Parameters
ip-address: IP address contained in the ARP mapping entry to be created/removed.
mac-address: MAC address contained in the ARP mapping entry to be created, in the format of H-H-H.
vlan-id: ID of the VLAN to which the static ARP entry belongs, in the range of 1 to 4,094.
interface-type: Type of the port to which the static ARP entry belongs.
interface-number: Number of the port to which the static ARP entry belongs.
Description
Use the arp static command to create a static ARP entry.
Use the undo arp command to remove an ARP entry.
By default, the system ARP mapping table is empty and the address mapping entries are obtained by
ARP dynamically.
Note that:
Static ARP entries are valid as long as the Ethernet switch operates normally. But some operations,
such as removing a VLAN, or removing a port from a VLAN, will make the corresponding ARP
entries invalid and therefore removed automatically.
As for the arp static command, the value of the vlan-id argument must be the ID of an existing
VLAN, and the port identified by the interface-type and interface-number arguments must belong to
the VLAN.
Currently, static ARP entries cannot be configured on the ports of an aggregation group.
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