[cobalt-security] IP ranges, was ipchains.

[Dom Latter <DLatter@xxxxxxxxxxxxxxx>]

> I'm not quite sure if I understand what the difference
> is between IP ranges under 192 and those above it..<?>
> You're saying that basically any range above 192 would
> be more segregated and not necessarily from one
> general region or do I possibly have it backwards?
> What you're saying is that 203.232.150.125 could
> belong to a system in China and yet 203.232.150.225
> could be mapped to a system in another part of the
> world (correct?) 

Class C addresses are allocated in blocks of 256 addresses; 
but typically what's happening these days is that the ISPs 
are then handing out a sub-block to a customer.  So, 
203.232.150.0 -> 203.232.150.31 belong to Acme Widget Co,
203.232.150.32 -> 203.232.150.63 belong to Bogon Widget Co, 
etc, both of whom get their connectivity throught the same ISP;
and are therefore probably in the same area.