---
name: "arpfetch"
section: "8"
platform: "linux"
package: "arpwatch"
version: "2.1a15-9"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/arpfetch"
---

# arpfetch(8)

obtain ethernet/ip address pairings via snmp

## NAME

arpfetch - obtain ethernet/ip address pairings via snmp

## SYNOPSIS

arpfetch *host* *cname*

## DESCRIPTION

**arpfetch** gets pairings between ip addresses and the ethernet address of the corresponding network card. These pairings are retrieved from other network entities, like routers, by the SNMP protocol using **[snmpwalk(1)](/snmpwalk/1.md)**. Mostly, this program is an agent that is used to get data for **[arpsnmp(8)](/arpsnmp/8.md)**. This fetching of address mappings can be further automated by use of **[bihourly(8)](/bihourly/8.md)**.

Both command arguments must be present for proper operation. The *host* argument is the hostname of the network entity being queried and the *cname* argument is the SNMP community name of the network entity.

The information is presented on *stdout* in a format compatible with **[arpsnmp(8)](/arpsnmp/8.md)** and **[arpwatch(8)](/arpwatch/8.md)**.

Further information about SNMP can be found in **[snmpcmd(1)](/snmpcmd/1.md)** and **[variables(5)](/variables/5.md)**.

## SEE ALSO

[**arpsnmp**(8)](/arpsnmp/8.md), **[arpwatch(8)](/arpwatch/8.md),** [**bihourly**(8)](/bihourly/8.md), [**snmpwalk**(1)](/snmpwalk/1.md), [**snmpcmd**(1)](/snmpcmd/1.md), [**variables**(5)](/variables/5.md)

## BUGS

Please send bug reports to arpwatch@ee.lbl.gov.

## AUTHORS

Craig Leres of the Lawrence Berkeley National Laboratory Network Research Group, University of California, Berkeley, CA.

The current version is available via anonymous ftp:

*ftp://ftp.ee.lbl.gov/arpwatch.tar.gz*

This manual page was contributed by Hugo Graumann.