Re: home network behind NAT and firewall ?

From: Duane Arnold (notme_at_notme.com)
Date: 02/18/05 

Date: Fri, 18 Feb 2005 12:04:15 GMT

"bobjan" <bobjan@eunet.yu> wrote in news:1108724377.731351.209410
@g14g2000cwa.googlegroups.com:

> I have a few PCs (with WinXP OS) connected to a hub, and the hub is
> connected to a cable modem. All PCs have different IP addresses such as
> 10.0.1.x(provided by ISP), though ISP network is behind NAT.
> Everything works fine when I disable firewall on my XPs.
> When I enable firewalling my PCs don't see each other.
> What shall I do to make my network fully functional, and to protect PCs
> with firewall. Is there a firewall program which you can recomend me ?
> Or can I configure WinXP firewall to let my PCs communicate ?
> Thanks.
>
>

You can get yourself a cheap NAT router and make it the gateway device for
the WAN and LAN and let it be the ICS device for the machines on the LAN.
You can take the hub and plug into one of the LAN ports on the router to
extend the LAN if need be and let the router with its DHCP server issue IP
(s) to your machines.

http://www.homenethelp.com/web/explain/about-NAT.asp

By using a NAT router which is a plug it up and go device with little or no
configuration on your part, you can disable the XP FW on the machines and
they will be able to see each other. The NAT router will provide the same
protection as the XP FW, which is only stopping inbound threats, but the
NAT router does it for the entire network and is better protection too. You
only need one IP from the ISP if using a router.

Duane :)

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