check out Todd Lammle's book -
CCNA: Cisco Certified Network Associate Study Guide, Deluxe Edition
it may be for Cisco stuff, but it's also great for general networking stuff
and it covers your little subnetting problem fully...
On Tuesday 04 June 2002 16:37, Breathnach, Proinnsias (Dublin) wrote:
> Anyone got a nice 101 on this ? Or even recommendations for what to read up
> on ... pref well-written and online <g>
>> It's something that's interested me for a while now, but I've never fully
> gotten to grips with ...
>> P
>> > -----Original Message-----
> >
> > On Tuesday 04 June 2002 10:02, John Bolger wrote:
> > > Subtract the last number from 256 (in this case 256-248). This gives an
> > > answer of 16, which will always be the size of the subnet (including
> > > network address and broadcast address).
> > > Next get a list in your head of products of this number (in this case
> >
> > they
> >
> > > will be 0,16,32,48,64, etc.). These are your possible network
> > > addresses.
> > >
> > > At that point is obivious which network your host belongs to (0, as
> > > 0<1<15). So your answer is 192.168.0.0
> >
> > This is all wrong of course as 256 -248 is 8 and not 16 ;)
> >
> > So the Subnet ID remains 192.168.0.0 with a broadcast of 192.168.0.7
> >
> > J.
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