Virtual Box or Ubuntu?

[Derek Broughton]

Nils Kassube wrote:

> Derek Broughton wrote:
>> Gunawan wrote:
>> > Dear All,
>> > I have install ubuntu hardy heron as guest operating system on my
>> > windows. I use Virtual Box with NAT.
>> > Strange. I could ping to one external ip address for example my
>> > windows have 192.168.11.100.
>> > I could ping successfully to 192.168.11.50 inside my ubuntu but can
>> > get reply from another address.
>> > for example I could not get reply from 192.168.11.55.
>>
>> 192.168.* addresses are, in theory, private and non-routable - this
>> means that there's no guarantee that you can get from one subnet to
>> another
> 
> Those addresses are not routable _over the internet_ but within your LAN
> they are routable. It depends on your routers if the subnets can see each
> other.
 
Precisely, which is why I say there's no guarantee.

> OTOH, as we are talking about NAT, we aren't talking about routable. The
> ping of the OP is translated from the 10.* address within the VM to the
> IP of the host which seems to be 192.168.11.100, i.e. the target machine
> sees a ping from the host, which is in the same subnet.

Not the way I see my VirtualBox configured... 
-- 
derek