Re: How to check the Subnets/Network in Summary Address

Shameless plug:

I wrote a free subnet calculator for Apple iOS devices. You can download it
from iTunes here:

http://itunes.apple.com/us/app/networking-toolkit/id400815922?mt=8

It will allow you to take an assigned network and subnet it. Once you pick
the subnet mask it will list the individual network subnets.

Please tell me what you think and how I can improve it.

Paul Borghese

On Thu, May 19, 2011 at 12:42 PM, Roy Khan <roykhan123_at_hotmail.com> wrote:

> Hi
>
> thanks for the reply I am using this method can you tell me is this a valid
> ways
>
> 192.168.16.0 this is the summary address and subnet mask
> 255.255.248.0 summary address subnet mask
>
> 255.255.255.0 class C defautl mask
> 255.255.248.0 summary mask
> -----------------------
> 0. 0. 7 .0
>
> 192.168.16.0
> 0 . 0 . 7. 0
>
> start adding 7 to 16 = 17,18,19,20,21,22,23
> --------------------
> 192.168.23.255 this is the total number of summary address
> ------------------------
>
> 192.168.16.0/21 summry address
>
>
> M i Rite ???????
>
> pls confirm this
>
>
> > Date: Thu, 19 May 2011 16:53:59 +0100
> > Subject: Re: How to check the Subnets/Network in Summary Address
> > From: byronschen_at_googlemail.com
> > To: roykhan123_at_hotmail.com
> > CC: ccielab_at_groupstudy.com
> >
> > Hi Roy,
> >
> > This is a supernet address where you are summarising a block of Class C
> > addresses.
> >
> > The summary address of 192.168.10.0/21 falls within the boundry of
> > 192.168.8.0 - 192.168.15.255 class C's
> >
> > You have borrowed 5 bits from the 3rd octed i,e 2 ^5 - 2 = 30 subnets.
> >
> > 256 - 248 = 8. So count 8 16 24 32 40 48 etc...will give you the
> different
> > blocks.
> >
> > I hope that this helps.
> >
> > Kind Regards
> >
> > Byron Chen
> >
> > On 18 May 2011 18:04, <roykhan123_at_hotmail.com> wrote:
> >
> > > Hi Guys
> > >
> > > I Have a question Please tell me If i have a Summary Address how i will
> > > calculate which Network include in it.
> > > For example If i say , I have a summary address of 192.168.10.0/21 and
> i
> > > tell
> > > you
> > > how many subnets or network contain in this address how you will
> calculate
> > > it
> > > Pls if any one knows the short cut reply to that email.
> > >
> > > the below are the summary addresses.
> > > 1. 192.168.10.0/21
> > > 2. 192.168.16.0 255.255.248.0
> > >
> > > Br
> > >
> > > Roy
> > >
> > >
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Received on Thu May 19 2011 - 16:41:58 ART