Arp Static Configuration - Lenovo RackSwitch G8332 Command Reference Manual

ARP Static Configuration

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Static ARP entries are permanent in the ARP cache and do not age out like the ARP
entries that are learned dynamically. Static ARP entries enable the switch to reach
the hosts without sending an ARP broadcast request to the network. Static ARPs
are also useful to communicate with devices that do not respond to ARP requests.
Static ARPs can also be configured on some gateways as a protection against
malicious ARP Cache corruption and possible DOS attacks.
Table 265.
ARP Static Configuration Options
Command Syntax and Usage
ip arp <IP address> <MAC address> [vlan < VLAN ID (1‐4094)>]
[port <port alias or number>]
Adds a permanent ARP entry. To enable ARP on a LAG, add the port number
of a member of the LAG.
Command mode: Global configuration
ip arp <destination unicast IP address> <destination multicast MAC address>
vlan <cluster vlan number>
Adds a static multicast ARP entry for Network Load Balancing (NLB).
Command mode: Global configuration
no ip arp <IP address>
Deletes a permanent ARP entry.
Command mode: Global configuration
no ip arp all [ip <IP interface number>|interface port
<port alias or number>|vlan <VLAN ID (1‐4094)>]
Deletes all static ARP entries or just the ARP entries that use a specific IP
interface, port or vlan.
Command mode: Global configuration
show [ip] arp static
Displays current static ARP configuration.
Command mode: All
Chapter 4: Configuration Commands
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