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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