---
name: "update-cluster-maccollect"
section: "8"
platform: "linux"
package: "update-cluster"
version: "0.41.5-5"
release: "Debian 5.0 (Lenny)"
platforms: ["linux"]
url: "https://new.carta.tech/update-cluster-maccollect"
---

# update-cluster-maccollect(8)

collects mac addresses and generates output

## NAME

update-cluster-maccollect - collects mac addresses and generates output

## SYNOPSIS

**update-cluster-maccollect \[***entry***\] ... \<** *input-filename*

## DESCRIPTION

**update-cluster-maccollect** listens to the network interface, and collects MAC addresses. It will auto-generates a list of hostnames and IPs by the information, to generate a list of hosts which were sending packets to the network.

Useful for creating a template for list of nodes in the LAN automatically.

## OPTIONS

- **--prefix \[***pc***\]**

  Sets the hostname prefix to be pc. Every generated hostname will be in the form of pcXX,  where XX is a numeral.

- **--ipprefix \[***192.168.0.***\]**

  Network IP prefix. A number will be appended.

- **--ipstart \[***2***\]**

  Start value for IP. Default is 2.

- **--hoststart \[***2***\]**

  Start value for the numeric part of hostname. Default is 2.

- **--domainsuffix \[***.domain.org***\]**

  Specify a domain name to use. Start with a period.

  The default is  **.cluster**. It is possible to suppress the domain part by specifying  **--domainsuffix ""**

- **--interface \[***eth0***\]**

  Network interface to listen to. MAC addresses are collected from packets that  are received on that interface.

- **--clusterxml \[***clusterml***\]**

  Specifies the cluster.xml file to use instead of the default.

## EXAMPLES

- **update-cluster-maccollect --domainsuffix .hoge.org --prefix machine --interface eth0 --ipstart 1 --hoststart 1**

  Collect MAC addresses on interface eth0.

## BUGS

Only really supports network with less than 256 hosts. Only really supports IPv4 networks. Assumes a lot of things.

## AUTHOR

Written by  **Junichi Uekawa \<dancer@debian.org\>, \<dancer@netfort.gr.jp\>, \<dancer@mikilab.doshisha.ac.jp\>** for Debian Project.

## SEE ALSO

update-cluster-add (*8*),  update-cluster-remove (*1*),  update-cluster-regenerate (*8*),  tcpdump (*8*)