Users Guide

Configuration Tasks for ARP
For a complete listing of all ARP-related commands, refer to the Dell Networking OS Command Line Reference Guide.
Configuration tasks for ARP include:
• Configuring Static ARP Entries (optional)
• Configuring ARP Inspection Trust
• Configuring ARP Retries
• Configuring the Timer for Resending Unresolved ARPs
• Enabling Proxy ARP (optional)
• Clearing ARP Cache (optional)
• ARP Learning via Gratuitous ARP
• ARP Learning via ARP Request
• Configuring ARP Retries
Configuring Static ARP Entries
ARP dynamically maps the MAC and IP addresses, and while most network host support dynamic mapping, you can configure
an ARP entry (called a static ARP) for the ARP cache.
To configure a static ARP entry, use the following command.
• Configure an IP address and MAC address mapping for an interface.
CONFIGURATION mode
arp ip-address mac-address interface
– ip-address: IP address in dotted decimal format (A.B.C.D).
– mac-address: MAC address in nnnn.nnnn.nnnn format.
– interface: enter the interface type.
* For the Management interface, enter the keyword ManagementEthernet then the slot/port information. The slot
range is from 0 to 1 and the port range is 0.
* For a Port Channel interface, enter the keywords portchannel then a number. The range is from 1 to 128.
* For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then the slot/port information.
* For a 40-Gigabit Ethernet interface, enter the keyword fortyGigE then the slot/port information.
* C1048P (port extender) 1 Gigabit Ethernet interfaces use the following command syntax:
interface peGigE pe-id/pe-stack—unit-id/port-number
where pe-id is a port-extender ID number from 0 to 255
pe-stack-unit-id is a PE stack-unit number from 0 to 7
Example of the show arp Command
These entries do not age and can only be removed manually. To remove a static ARP entry, use the no arp ip-address
command.
To view the static entries in the ARP cache, use the show arp static command in EXEC privilege mode.
Dell#show arp
Protocol Address Age(min) Hardware Address Interface VLAN CPU
--------------------------------------------------------------------------------
IPv4 Routing 463