Command Reference Guide

3Com Router 5000 Family and Router 6000 Family dhcp server synchronize arp interface (System view) ● 99
Command Reference
dhcp server synchronize arp interface (System
view)
Purpose Use the dhcp server synchronize arp interface command to enable
authorized ARP for specified DHCP interface address pools.
Use the undo dhcp server domain-name interface command to disable
authorized ARP for specified DHCP interface address pools.
Syntax dhcp server synchronize arp { interface interface-type interface-number
[ to interface-type interface-number | all }
undo dhcp server synchronize arp { interface interface-type
interface-number [ to interface-type interface-number | all }
Parameters interface-type
interface-number [ to
interface-type
interface-number ]
Indicates an interface or all interfaces from the first
specified interface to the second. Note that the
interfaces must be Ethernet interfaces (or
subinterfaces) or virtual Ethernet interfaces.
all
Indicates all interfaces.
Default By default, authorized ARP is disabled.
Example Enable authorized ARP for interfaces from Ethernet2/0/0.1 to Ethernet2/0/0.5.
[3Com] dhcp server synchronize arp interface ethernet 2/0/0.1 to
ethernet 2/0/0.5
View This command can be used in the following views:
■ System view
Description After you enable authorized ARP for the specified DHCP interface address pools, the
system permits IP addresses allocated from the interface address pools to be resolved
dynamically using ARP, and allows the corresponding authorized ARP entries to be
added to the ARP table.
Note that you cannot use the display current-configuration command to
verify the configuration made by using the
dhcp server synchronize arp
interface
command, which is implemented by executing the dhcp server
synchronize arp
command repeatedly.