Re: nmap -PR

From: one man army (newsAT_at_screenlightDOT.com)
Date: 10/23/05 

Date: Sun, 23 Oct 2005 03:06:56 GMT

In article <newsAT-7D4AAE.19574322102005@newsclstr02.news.prodigy.com>,
 one man army <newsAT@screenlightDOT.com> wrote:

> In article <dj7a0n$h8t$1@bolt.sonic.net>,
> claudel@bolt.sonic.net (claudel) wrote:
>
> > In article <newsAT-C28FD3.22221719102005@newsclstr02.news.prodigy.com>,
> > one man army <newsAT@screenlightDOT.com> wrote:
> > >I am new to nmap. What I am trying to do is to scan my subnet for all
> > >the MAC addresses of devices. I have done the simple scan for IP addrs,
> > >but when I do either of the following ARP pings, nmap complains.
> > >Pointers? Answers?
> > >
> > >me%./nmap -PR "192.168.1.*"
> > >
> > >Starting nmap 3.93 ( http://www.insecure.org/nmap/ ) at 2005-10-19 22:07
> > >PDT
> > >Socket trouble in massping : Operation not permitted
> > >
> > >me% ./nmap -PR 192.168.1.1
> > >
> > >Starting nmap 3.93 ( http://www.insecure.org/nmap/ ) at 2005-10-19 22:07
> > >PDT
> > >Socket trouble in massping : Operation not permitted
> >
> > Run it via sudo or as root....
> >
>
> um, that does not seem to work very well. I get a large repitition of:
>
> WARNING: eth_send of ARP packet returned 4294967295 rather than
> expected 42
>
  also, one gotch'a that I did already find. My Linksys router is a
Router, not a hub, so it isolates requests from one branch to another. I
do have a local hub in front of me, however, so I expect to see two MAC
addresses.

  Q. Get MAC addresses via nmap for a trivial local subnet?

  thanks

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