Re: nmap Discover others question

[Ansgar Wiechers <bugtraq () planetcobalt net>]

On 2013-09-22 ToddAndMargo wrote:
>   Using NMap from the command line, I would like to discover what all
> is attached to the Ethernet.  This run string seems to fulfill the
> request:
>
>        nmap -O -v 192.168.255.0/24
>
> Question: what about devices that do not use this network?

They won't be discovered.

> Is this not a issue, as they couldn't communicate anyway?

They can't communicate via TCP/IP in the network 192.168.255.0/24. They
may be able to communicate just fine on different networks or using
different protocols.

> If they are connected though a "route" command, would they not show up
> anyway?

That question doesn't make any sense. The "route" command sets or
displays routes, i.e. next-hop destinations for packets. It doesn't
"connect" anything.

This will probably sound blunt, but you definitely need to work on your
network basics, particularly TCP/IP and Ethernet. This mailing list is
not the right place for filling the gaps you obviously have.

Regards
Ansgar Wiechers
-- 
"All vulnerabilities deserve a public fear period prior to patches
becoming available."
--Jason Coombs on Bugtraq

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