Arp-Loose-Check - Allied Telesis IE340 Series Command Reference Manual

IP A P
DDRESSING AND ROTOCOL
- -
ARP LOOSE CHECK

arp-loose-check

Overview Use this command to let AlliedWare Plus process ARPs that have a sender protocol
address from outside the interface's local subnets.
Use the no variant of this command to return to the default ARP processing
behavior. By default, AlliedWare Plus will only process ARP packets that are local to
the incoming interface.
arp-loose-check
Syntax
no arp-loose-check
Default Disabled.
Mode Interface Configuration for VLAN interfaces.
Usage notes By default, AlliedWare Plus will only process ARP packets that are local to the
incoming interface, to prevent ARP poisoning. This means the packets must have:
•
•
If you enable loose ARP processing and then use the no variant of this command
to return to default processing, you may need to clear the ARP cache. Use the
arp-cache
You cannot use this command at the same time as Proxy ARP. Proxy ARP also
allows AlliedWare Plus to process ARPs that have a sender protocol address from
outside the interface's local subnets.
Example To process ARPs that have a sender protocol address from outside vlan2's local
subnets, use the commands:
awplus#
awplus(config)#
awplus(config-if)#
To return to the default behavior on vlan2, use the commands:
awplus#
awplus(config)#
awplus(config-if)#
Related arp
commands
clear arp-cache
ip proxy-arp
show arp
C613-50631-01 Rev A
C
OMMANDS
a sender protocol address inside one of the incoming interface's local
subnets, and
a target protocol address equal to one of the incoming interface's IP
addresses.
command. This will remove any undesired existing ARPs.
configure terminal
interface vlan2
configure terminal
interface vlan2
Command Reference for IE340 Series
AlliedWare Plus™ Operating System - Version 5.5.3-0.x
arp-loose-check
no arp-loose-check
clear
866