Re: Mac or ip from device

[Jim Halfpenny <jim.halfpenny () gmail com>]

Hi,
You could try ARP requests for broadcast addresses (IP and Ethernet)
and see what happens. Some devices might pipe up.

Jim

On 17 September 2011 17:40, Brett <cgkades () gmail com> wrote:
> It does have an ethernet port. The device reads a human generated config file that sets it's ip and Mac address. 
> Sometimes the file gets fat fingered and the Mac or ip or both can get messed up. I have thought about hooking up 
> tcpdump or wireshark but I wasn't sure if there was a "hey what are you" request that I didn't know about. I could 
> spam arp requests and see if I get a hit but depending on how fat they fingered the file it could take longer then 
> just ripping apart the device to get to the console port. Luckily the new ones have the console port accessible from 
> the outside.
>
> Sent from my iPhone
>
> On Sep 17, 2011, at 9:15, Jim Halfpenny <jim.halfpenny () gmail com> wrote:
>
> > Hi,
> > Do these devices have an Ethernet port? I would connect it to another
> > machine directly and sniff what happens when it is powered on. Does it
> > request a DHCP address? Is there any ARP traffic which betrays the
> > network configuration?
> >
> > Regards,
> > Jim
> >
> > On 16 September 2011 21:29, Brett <cgkades () gmail com> wrote:
> > > I have a friend who has an interesting problem. He has some old "radio" devices that have their console port buried 
> > > in it's case. He would like to know if there was a way to probe the network card (made in house) which is 
> > > externally accessible, to get it's Mac, or more helpfully, it's ip?
> > >
> > > Thanks for any help
> > >
> > > Sent from my iPhone
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