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José PerezFlag for Chile

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Communicating machines through cross-over cable?

Hi,
I hope someone can help me with this.

I have received a computer and a robotic machine (PC that connects to a Robotic machine through a cross over cable).
Currently, I have 2 issues:

1. I don't know what's the IP of the robotic machine (and really need to guess it)
2. I dont have any answer from the robotic machine, but I can see both are connected, and Lan ports appears properly connected (lights are flashing when connected each other)

So the question is, what can I do, or what commands can I launch to make the robotic machine to answer?
I know there are applications that scan networks and computers, easily, but you have to provide the subnet (ie. advanced ip scanner) or, at least, provide the ip of a target machine.
In this case, i don't have the ip of the robotic machine, i just have a computer connected to the machine via xover cable and I do know they are connected.

So, I would like, if you can tell or recommend, what can I do so the machine answers to the computer, either via Windows or Linux commands. Everything can work for me, I just need some answer from the robotic machine... probably from an answer I can extract the ip of the source machine.

Please, any idea can be usefull.
Thanks a lot.
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arnold
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Hi, after trying lot of things with xover cable (none of them work), I think something can result trying with "logging enabled router". Can you please suggest a cheaper one or recommend any model of this kind of router? Hopefully one than you have experience with.
Thanks.
when using a cross cable, before connecting it to a HUB or to the other system ,did you have a chance to install and run wireshark such that you can see whether the other side is requesting an IP (DHCPDiscover)?
Connect it to a router that allocates IPs via DHCP will if the system is configured to obtain via DHCP, it will be listed as a client.
Finally I connect both machines and use Wireshark, information came as magic!
Thanks a lot.