"Ralph Mawyer, Jr." <[EMAIL PROTECTED]> wrote:
[snip]
Here's the plan:
I want to network at least two computers to the cable modem, both in same room.
RoadRunner cable to House --> RR Cable Modem provided -->Ethernet
Router or Switch --> Router to PB 2400 and to Wintel laptop.
Questions:
***************************************
Marc responds:
Hi Ralph. I have exactly this setup with Roadrunner at my house. It is a small
apartment house and I wired the entire place as a LAN with a single cable modem
in the basement.
New England Mediaone configures their accounts so that you can get internet
service only at the machine or machines whose ethernet card MAC number is
registered with them. So you can't just switch between one machine and the other
because the MAC #s are different. If you want to connect 2 machines with a
switch you need to register the 2nd ethernet card MAC number. In NE they charge
extra for this. For only 2 computers though paying the extra amount and using a
switch might be the more economical solution.
If you use a router with Network Address Translation software you only need to
register one ethernet card. This NATsoftware takes messages from the client
computers, swaps the IP addresses and then sends it out over the cable modem.
Reverses the process on the way back in. In my case I have an old Quadra serving
as the router. It has two ethernet cards; one is registered with Mediaone and
connects to the cable modem, the 2nd connects to the LAN. I use IPNetRouter as
the NAT software. There's lots of info on the internet on how to do this. Here's
a few links to get started:
www.internautics.com/faqs/NE-M1X-LAN-FAQ.txt
www.sustworks.com (IPNetRouter)
www.sybergen.com (Sybergate for PC)
In your case you could have one of your laptops double as a router, but it means
it must be on in order for you to use the second machine. Alternatively you can
get a used PC (e.g. 486) for about $100 and use that as a dedicated router. An
old machine is fine, since the processer speeds are still going to be much
faster than your data transmission.
As for ethernet cards, I use a Fallaron 10T card for my PB2400, about $100. If
you do the router thing you'll need two ($$). Might be cheaper just to get an
old desktop PC and spend $20 for a 2nd ethernet card.
As I understand it there is no advantage to stepping up to a 100T card, simply
because the transmission via cable modem doesn't currently get up to speeds
where this is necessary.
You can get alot more detail in some of the newsgroups, such as alt.cable.ip.
email me if you want more details.
-Marc
.
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