High Quality Content by WIKIPEDIA articles! Arping is a computer software tool that is used to discover hosts on a computer network. The program tests whether a given IP address is in use on the local network, and can get additional information about the device using that address. The arping tool is analogous in function to ping, which probes hosts using the Internet Control Message Protocol at the Internet Layer (OSI Layer 3). Arping operates at the Link Layer (OSI Layer 2) using the Address Resolution Protocol (ARP) for probing hosts on the local network (link) only, as ARP cannot be routed across gateways (routers). However, in networks employing repeaters that use proxy ARP, the arping response may be coming from such proxy hosts and not from the probed target.

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