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Cisco IOS in a Nutshell, 2nd Edition by James Boney

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Name

arp (global) — global

Synopsis

arp ip-address mac-address type [alias]
no arp ip-address mac-address type [alias]

Configures

Adds a static entry to the ARP table

Default

No static ARP entries are made

Description

This command allows you to place a static entry in the ARP table, which is a dynamic table that maps IP addresses to the corresponding MAC (hardware) addresses. The ip-address and mac-address are simply the IP address and the hardware address for the entry you wish to create. The type argument is the encapsulation type (arpa for Ethernet, smds for SMDS, snap for FDDI and token ring, etc.). The optional alias keyword tells the router to respond to ARP requests as if it were the requested device itself; i.e., the router responds to an ARP request for an aliased device with its own IP address.

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