DES-1228/ME Layer 2 Metro Ethernet Switch CLI Reference Manual
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config gratuitous_arp send duplicate_ip_detected
was sent by an IP address that matched the system’s own IP address. In this case, the
system knows that somebody out there uses an IP address that is conflicting with the
system. In order to reclaim the correct host of this IP address, the system can send out the
gratuitous ARP request packet for this duplicate IP address.
Parameters
enable
−
Enable sending of gratuitous ARP when duplicate IP is detected.
disable
−
Disable sending of gratuitous ARP when 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-1228/ME:4#config gratuitous_arp duplicate_ip_detected enable
Command: config gratuitous_arp duplicate_ip_detected enable
Success.
DES-1228/ME:4#
config gratuitous_arp learning
Purpose
Used to enable/disable 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/disable learning of ARP entry 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 the
gratuitous ARP learning, the system will not learn new entry 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 learning of ARP entries based on the received gratuitous ARP packet.
disable
−
Disable learning of ARP entry based on the received gratuitous ARP packet.
Restrictions
Only Administrator-level users can issue this command.
Example usage:
To enable learning of ARP entries based on the received gratuitous ARP packets:
DES-1228/ME:4# config gratuitous_arp learning enable
Command: config gratuitous_arp learning enable
Success.
DES-1228/ME:4#
config gratuitous_arp periodical_send
Purpose
Used to configure the interval for periodical sending of gratuitous ARP request packets.
Syntax
config gratuitous_arp send periodically ipif <ipif_name 12> interval <value 0-65535>
Description
This command is used to configure the interval for periodical sending of gratuitous ARP
request packets. By default, the interval is 0.
Parameters
<ipif_name 12>
−
Interface name of L3 interface.
