Home network FAQs
Home Up

Home
How to get started
Fitting it together
Choosing an ISP
General FAQs
Home networks
About us

Home Networking FAQ

Is it possible to share my USB modem with other PCs?
How can I extend the cable from my ADSL socket?
How do I share my connection?
I keep hearing of ICS?
Does ICS work with a Mac?
Are there any online guides to setting up ICS?
How much will it cost to share my connection?
Can I share my connection with a router?
Can ICS do Port Mapping?
What other software routers are there?
How do I know which ports to forward to my application?
A simple walkthrough

Is it possible to share my USB modem with other PCs?

Yes. A USB modem can be shared between two or more computers.

The process of sharing a DSL connection is identical to what you do to share a dialup modem connection between two or more computers.

back to top

How can I extend the cable from my ADSL socket?

An RJ11 extension lead is what you need. If a BT engineer visits your premises (some products are engineer assisted), it is possible to request up to 30m of cable to be installed from the master socket.

If your installation is 'wires-only', Comet sell a suitable RJ11 lead in an extension drum that is 10m long for  about £9.

back to top

How do I share my connection?

If you are running Windows 98SE, Windows 2000 or XP, the simplest method is as follows:

  1. Install a network card in the machine with the USB modem.
  2. Enable Internet Connection Sharing for the USB modem.
  3. Install a network card in the computers you wish to share with.
  4. Set each computer to obtain it's IP configuration via Dynamic allocation (DHCP).

That's it - a very simple sharing system should be running.

back to top

I keep hearing of ICS?

ICS is Internet Connection Sharing. It comes as standard with Windows 98SE/2000/XP.

back to top

Does ICS work with a Mac?

Yes. Internet Connection Sharing does not require a client side program to operate. Mac users, just like PC users, will require a network card. Practically any system which supports TCP/IP will work with ICS.

back to top

Are there any online guides to setting up ICS?

There are plenty of sites providing step by step guides. Here are a few:

Practically Networked ICS How To Center
ZDnet Win98 Connection Sharing Guide

back to top

How much will it cost to share my connection?

The cheapest solution for 2 computers is if you are running Windows 98SE/2000/XP and therefore already have Internet Connection Sharing software.

The only other things you need are two Ethernet network cards (10Mbps or 100Mbps or dual speed ones will do) costing about £15 each and a £5 cross-over patch cable.

If you expand the network to include 3 or more computers then you will need to add an Ethernet hub/switch to the setup or go for the easier wireless option.

back to top

Can I share my connection with a router?

Yes. but you must ensure that the router has an inbuilt ASDL modem. Some do not, and are designed to purely route data around your network. A list of a few unsuitable devices is as follows:

SMC 7004 Barricade
Linksys BEFSR41
ADSL-R4000 from Stak Trading
Netgear RP114 Internet Gateway
Visit our ADSL Hardware FAQ for a selection of routers with inbuilt ADSL modems designed for connection sharing.

back to top

Can ICS do Port Mapping?

Yes. Windows2000 supports it inherently. Visit Practically Networked ICS Page for a handy configuration utility that works on Windows ICS.

back to top

What other software routers are there?

A number of other solutions other than Windows ICS are available, most come with a free 30 day trial period. This allows you to pick the package that you are most comfortable with.

WinRoute - Router and Firewall
SolidShare - Firewall and connection sharing
Sygate - connection sharing and a plugin firewall
WinProxy - another software package

back to top

How do I know which ports to forward to my application?

The best thing to do is visit the software manufacturer's website and look for information about NAT router or firewalls.

A good online list for popular applications is here.

back to top

A simple walkthrough

Sygate, a popular sharing and firewall product, has a simple walkthrough page (most of which equally applies to other connection sharing software): Getting Started with Home Office Network.

The guide covers example networks and automatic/manual network configuration.

back to top

Page last updated Wednesday, 08 December 2004