[Gllug] IP address detection

[Jan Kokoska]

On Mon, 2004-11-15 at 21:54 +0000, Adrian McMenamin wrote:
> On Monday 15 Nov 2004 20:57, Rich Walker wrote:
> > Robert Crowther <robertc at boogdesign.com> writes:
> > > Adrian McMenamin wrote:
> > >> Box is here, powers up, hub says the ethernet connection is there - but
> > >> I have no monitor - so how do I detect what the IP address is so I can
> > >> ssh or telnet my way into it?
> > >
> > > If the network interface is up there's probably some sort of broadcast
> > > going on, the hub will presumeably be repeating that to you even if your
> > > netowrk interface is ignoring it, you may pick that up with ethereal or
> > > similar?
> >
> > arpwatch is a nice thing to run for this. Sends you emails telling you
> > about new MAC addresses, new Ethernet addresses for old MAC addresses,
> > new MAC addresses for old Ethernet addresses, and even hardware vendors.
> >
> arpwatch doesn't appear to do the job, at least it doesn't detect the card and 
> ethereal doesn't seem much cop either, though there is a switch and a hub 
> between my ethereal client and the Sun box.
-- 

So did you try the serial console and pinging broadcasts as John
suggested?

E.g.
10.0.0.255
10.0.255.255
10.255.255.255
192.168.0.255
192.168.1.255
..

Just do "arp -n" after the pings, or watch ARPs in say "iptraf".


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