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xStack® DES-3200 Series Layer 2 Ethernet Managed Switch CLI Reference Guide
303
config gratuitous_arp send duplicate_ip_detected
Purpose
Used to enable or disable the sending of gratuitous ARP requests while
duplicate IP addresses are detected
Syntax
config gratuitous_arp send duplicate_ip_detected [enable | disable]
Description
The command is used to enable or disable the sending of gratuitous ARP
request packets while duplicate IPs are detected. By default, the state is
enabled.
Parameters
enable − Enable the sending of gratuitous ARP when a duplicate IP is
detected.
disable − Disable the sending of gratuitous ARP when a duplicate IP is
detected.
Restrictions
Only Administrator-level users can issue this command.
Example usage:
To enable gratuitous ARP request when a duplicate IP is detected:
DES-3200-28:4#config gratuitous_arp send duplicate_ip_detected enable
Command: config gratuitous_arp send duplicate_ip_detected enable
Success.
DES-3200-28:4#
config gratuitous_arp learning
Purpose
Used to enable or disable the learning of ARP entries in ARP cache
based on the received gratuitous ARP packets.
Syntax
config gratuitous_arp learning [enable | disable]
Description
Normally, the system will only learn the ARP reply packet or a normal
ARP request packet that asks for the MAC address that corresponds to
the system’s IP address.
The command is used to enable or disable the learning of ARP entries in
ARP cache based on the received gratuitous ARP packet. The gratuitous
ARP packet is sent by a source IP address that is identical to the IP that
the packet is queries for. Note that, with gratuitous ARP learning, the
system will not learn new entries but only do the update on the ARP table
based on the received gratuitous ARP packet.
By default, the state is enabled.
Parameters
enable – Enable the learning of ARP entries based on received
gratuitous ARP packets.
disable − Disable the learning of ARP entries based on received
gratuitous ARP packets.
Restrictions
Only Administrator-level users can issue this command.
Example usage:
To enable learning of ARP entries based on the received gratuitous ARP packets: