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CA|ble modems and networks

By DCHH ·
How do I go about sharing a fixed IP cable modem (provided via the digital cable company's box) to the LAN at home. They have muttered about using two network cards in the main box then use the sharing techniques in Win98 to make it shareable (not sure if this allows multiple access)
Any and all help welcome. I do know someone who has managed this with a router but this is expensive option
Thanks
D

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CA|ble modems and networks

by DKlippert In reply to CA|ble modems and network ...

I like the router solution, but 2 NIC cards also work.
There are some internet sites that will walk you through the process. One great site is:
http://www.practicallynetworked.com/sharing/sharing.htm
(no spaces in the URL)

Microsoft has some information as well. Type the following in the address box of IE:

MSKB Q238135

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CA|ble modems and networks

by DCHH In reply to CA|ble modems and network ...

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CA|ble modems and networks

by RamBill In reply to CA|ble modems and network ...

If your ISP provides you with only one IP.
1. You need to install 2network cards in the main computer, one in the 2nd computer. 1st card in main computer gets you on the net. The second is to serve the second computer.

2. Install either NAT or Proxy software. The advantages of using proxy are that you can block ports and it's more customizable. The disadvantage is that most networking software might require special configuration in order to run. If you decide to use NAT, on the other hand, most of your software will work without additional configuration on the client PC.
3. Both computers have to be up and running for 2nd one to get online.

The software should have full instructions for configuring the NAT or Proxy.
Hopefully thiswill help out.

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CA|ble modems and networks

by DCHH In reply to CA|ble modems and network ...

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CA|ble modems and networks

by eBob In reply to CA|ble modems and network ...

As you suggest, there are essentialy 2 solutions.

1 - Software
Setup a PC with 2 NICs, one to connect to your broadband "modem", the other to your other PC (with a roll-over cable) or to a simple "hub". Assuming Windoze, setup Internet Connection Sharing (ICS) on the 2-NIC PC. You might also need to install ICS client on the other PC(s).

You should also put a software firewall on the 2-NIC PC (ZoneAlarm or BlackICE). Note: Proxy is NOT = Firewall.

2 - Hardware
Get one of those cool little Cable/DSL routers. Plug the WAN port into your broadband "modem". These boxes typically come with 4 10/100 Mbps switched Ethernet ports. Most of then come with DHCP server and Firewall capabilities (including NAT/PAT: Network/Port Address Transtlation). The one I use (Asante) also comes with a Print Server.

Cost? With option #1, you need to have BOTH PCs running to use the Internet from the "other" PC. The router solution is running around USD100, currently. (It is a very competitive market.) I think the capital cost of the router is paid off by:
- the usefulness of the box
- the (fact) that I don't need to always ensure my "gateway" box is up
- the (fact) that I am not stealing horsepower from a "gateway" box to allow other users to access the Internet
- my impression that the H/W is a better FW than the S/W (with it's underlying unsecure O/S!)
- flexibility (I can go up to 254 systems on my setup just by adding cheap little switches - although if I ever got to that point at home, I think I'd want to upgrade my link <VBG&gt (I can also upgrade to WLAN at anytime)
- and so on

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CA|ble modems and networks

by DCHH In reply to CA|ble modems and network ...

Thanks to all that was useful - now up and running
D

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CA|ble modems and networks

by DCHH In reply to CA|ble modems and network ...

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