Configuration Tasks For Arp; Configuring Static Arp Entries - Dell Z9000 Configuration Manual

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In Dell Networking OS, Proxy ARP enables hosts with knowledge of the network to accept and forward

packets from hosts that contain no knowledge of the network. Proxy ARP makes it possible for hosts to

be ignorant of the network, including subnetting.

For more information about Proxy ARP, refer to RFC 925, Multi-LAN Address Resolution, and RFC 1027,

Using ARP to Implement Transparent Subnet Gateways.

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:

Enabling Proxy ARP

Clearing ARP Cache

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 vrf vrf-name ip-address mac-address interface

– vrf vrf-name: use the VRF option to configure a static ARP on that particular VRF.

– 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

Dell#show arp

--------------------------------------------------------------------------------

Age(min) Hardware Address

08:00:20:b7:bd:32

Interface VLAN CPU

IPv4 Routing