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)
•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 slot/port information.
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
--------------------------------------------------------------------------------
---------
Internet 10.11.68.14 94 00:01:e9:45:00:03 Ma 0/0 - CP
Internet 10.11.209.254 0 00:01:e9:45:00:03 Ma 0/0 - CP
Dell#

Enabling Proxy ARP

By default, Proxy ARP is enabled. To disable Proxy ARP, use the no proxy-arp command in the interface
mode.
To re-enable Proxy ARP, use the following command.
446 IPv4 Routing