How to find an ip.

AstroTurf

AstroTurf

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I have a piece of hardware attached to a pc via Lan.

There are no DNS or DHCP servers in the connection (crossover from controller to pc).

PC crashed and needed new motherboard, any ideas on how I can find the controllers ip/subnet?
 
Some options

nmap
wireshark
arp -a
ping 255.255.255.255

Do you have the make & model of the device, maybe you left it on default settings which you could then google?
 
ponder said:
Some options

nmap
wireshark
arp -a
ping 255.255.255.255

Do you have the make & model of the device, maybe you left it on default settings which you could then google?
Click to expand...

Just allocate any ip to the pc, and fire up wireshark

Restarting the controller while sniffing may provide a good clue.
 
Thanks for the tips :)

The IP is not standard and the people we bought the machine from are at a tradeshow :/

I'll give wireshark a go.

Only way to restart the controller is to reset the whole machine but nothing a lead can't fix :)
 
arp! arp arp!

Plug in to the machine's ethernet port with a laptop. Run wireshark (or tcpdump) on the laptop, and then reboot the mystery machine. See what it says about itself as it boots up. If it wants to chat, it will send an ARP request with its own IP address, and what it believes the gateway address is.
 
Last edited:
Attach router to the network, turn off DHCP and check from there?
 
imranpanji said:
You founded it?

Used to run a few rs232 config devices on the network. So my stash box is full of them now. Wireshark always does the trick
Click to expand...
Yea worked like a charm :)

Busy with another controller now, fun as the card I have to run it keeps picking up as rs232 but the controller needs rs422 and I can't find a manual for the right dip switch and jumper settings uploadfromtaptalk1465236172080.jpg
 
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