Re: Mac or ip from device

[Brett <cgkades () gmail com>]

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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