"Walter Roberson" <roberson@hushmail.com> wrote in message
news:mKBQh.22591$6m4.14856@pd7urf1no...
> In article <58C7E636-CEE6-416F-8A1C-E1A9FB2CA0B5%edv@zschocke-berlin.de>,
> Florian Zschocke <edv@zschocke-berlin.de> wrote:
>>a perhaps silly question. If I have two machines connected with a
>>crossover-cable, both running tcp, but I only have access to one of
>>them. How can I get the static IP-Address of the other machine?
>
> In the general case, you cannot. For one thing, it might not have
> a static IP address. For another, there is no way to force a computer
> to respond if it has been configured to block you.
>
> You could -try- firing off an icmp echo packet to 255.255.255.255
> but don't be surprised if nothing answers.

Check the arp table (arp -a). Even if you don't get responses to ping or
other services, you may still get arp entries.