Re: 2 Private networks to share one broadband connection
- From: Jim Johnson - Serenity Consulting <JimJohnsonSerenityConsulting@xxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Tue, 30 Aug 2005 08:57:18 -0700
This is an older thread, but I recently ran into a related problem and don't
understand why...
The apartment building where my daughter lives provides wired ethernet
broadband to it's renters. I have determined (by direct observation of the
equipment) that the building is getting it's Internet access via cable, and
is using a NAT router (192.168.1.x) with a switch and DHCP to distribute
access to each unit.
My daughter and apartment mate have a Linux based desktop (to tinker with
Linux) and each has a notebook running XP Pro SP2 (they are college
students). They wanted to hook up the desktop via wired ethernet, and the
notebooks via wireless within the apartment.
I set up an inexpensive Belkin wireless NAT router/switch/DHCP (192.168.0.x)
off the apartment's ethernet jack. That is, we now had NAT behind NAT,
isolating their apartment's network from the rest of the building.
Web access was *really* slow going through both routers, but it worked for
the Linux PC and the two XP notebooks (wired and wireless).
I have a notebook that is an identical model to my daughter's. I had a
*terrible* time browsing the web from my notebook. I could always access a
few specific web pages, and nothing else. Yet, if I connected my notebook
directly the building's router (by-passing the apartment router), everything
worked great.
I changed my TCP/IP settings to those identical to her notebook (automatic
IP & DNS and nothing else); it didn't help. The ONLY difference between the
notebooks that I could determine is her apartment mate's notebook wasn't
assigned to either a workgroup or domain, my daughter's was assigned to the
workgroup used by our home network, and my notebook as assigned to the NT
domain used by my employer (although I don't login at work or anywhere else
via the domain, but to a local admin level account (not THE administrator
account) - the domain designation is there to access network drives while at
work).
Any ideas what is going on within the Windows networking parameters that
would cause my notebook to fail on most web sites?
By the way, one more clue is that I noticed my browser was apparently
resolving the IP address for many URLs as 169.254.1.1. I know this is a
private IP address and the reason for the page not found, but why would DNS
work for only some pages? And sometimes I could reach a top page at a site,
but not other links within the same site.
Jim
"Jack (MVP)" wrote:
> Hi
>
> As mentioned above, Network Segregation is the solution and it can be achieved with an
> additional Router (less than $20).
>
> The order of the Networks Installation can make a difference too.
>
> Install the less secure Network (I.e. the kids) directly to the Internet Modem.
>
> The Network that needs to be more secure goes second. Doing so will add protection to
> the more important network (Double NAT) and will allow you to configure local access to
> the Kids Network but will block access from the first Network to the second.
>
> Network Segregation - http://www.ezlan.net/shield.html
>
> Jack (MVP-Networking).
>
>
>
>
>
> "phillipo" <phillipo@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
> news:E65F06C4-C26C-45DA-83A1-4E1C4A45EA1A@xxxxxxxxxxxxxxxx
> > I want to have a parents' network and a children's network at home which are
> > conpletely invisible to each other.
> >
> > I have XP pro on the two machines I want on one network and XP home on the
> > other two networked machines. Can I do this with one router and controlled
> > permissions?
> > --
> > self built
> > MSI Radeon chipset m/b w. 512mb
> > Athlon 64 3000+
> > Leadtek PVR2000 analog tuner
> > WMCE 2005
>
>
>
.
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