Irfan Akber wrote:
> Are you telling me that if I am using two additional bits for the subnet
> and want to have 4 subnets I will be wasting 64+64 =128 ips all together
> and will only get 128 ips left. Are you sure. That is a hell of a lot of
> waste of ips, then what is the point of subnetting. I think that I will
> only be wasting 2 ips for each subnet one for the network and one for the
> broadcast making total of 8 ips.
>
> from howto.
>
> 4 subnets 62 255.255.255.192
> 111111.11111111.11111111.11000000)
>
> net --------- min.ip max.ip avail. ips
> 0 63 1 62 62
> 64 127 65 126 62
> 128 191 129 190 62
> 192 255 193 254 62
>
> Irfan Akber
> ----------
> > From: Brian Stone <bstone@imcpl.lib.in.us>
> > To: Irfan Akber <iakber@super.net.pk>
> > Cc: linux-net@vger.rutgers.edu
> > Subject: Re: Subnetting recommendations
> > Date: Wednesday, May 27, 1998 2:11 PM
> >
> > One thing to watch out for.
> >
> > You can't subnet a class C address into 4 2bit subnets. You only get 2
> subnets
> > becuase the you cant have a subnet mask of all 0s or all 1s. (11,00) .
> >
> > Brian
> >
> >
> > Irfan Akber wrote:
> >
> > > Hello everyone,
> > >
> > > I was planning on installing a network with subnets. Here is what I am
> > > planning. 1 router, 6 access servers (PM 2e-30), 2 hubs, 4-5 servers,
> 20
> > > workstations etc.
> > >
> > > Here is what I am planning.
> > >
> > > 1. One class C IP address space (Internet routable), here taking the
> > > example of 192.168.1.x
> > >
> > > 2. 4 subnets giving 62 ips on each (netmask 255.255.255.192). One hub
> for
> > > servers, workstations and router and the other for access servers.
> > >
> > > 3. One Linux machine in between the two hubs for ip filtering and
> other
> > > security issues with 2 ethernet cards.
> > >
> > > Now my question is as I need 30 ips for each access server that will be
> > > given to dial up users, can I put the all the access servers on the
> second
> > > hub, considering they will be on a different subnet. Willl this setup
> > > impose any problem on routing through Linux and the router. What will
> be
> > > possible routing table on access servers and the Linux machine.
> > >
> > > Any recommendations and comments will be appreciated specially with PM
> 2e.
> > >
> > > Irfan Akber
> > >
> > > -
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> >
> >
> >
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