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To: python-list@python.org
From: Christian Heimes <lists@cheimes.de>
Subject: Re: how to get a list of all the hosts on the intranet around my workstation?
Date: Sat, 16 Jul 2011 21:59:33 +0200
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Am 16.07.2011 21:13, schrieb Dan Stromberg:
> Some options:
> 
> 1) Broadcast ping
> 2) nmap the subnet, optionally with -P0
> 3) Check the arp cache (optionally after options 1, 2 or 4)
> 4) Unicast ping everything on the subnet in parallel - very effective, very
> fast, might want to do it with threads rather than subprocesses to avoid a
> load spike

5) arping - needs root permissions but works well inside a broadcast
domain. It can detect hosts that block ICMP echo reply, too.

Christian