Ethernet has two pairs of wires in a twisted pair setup: one pair for
transmit and one for recieve.
When you connect a bunch of machines together using a hub, the hub relays
all the information from all the Transmit pairs to all
the Receive pairs. That is, each machine sees on its receive pairs the
information sent on every machine's Transmit pairs. The
hub logically connects all the Transmit pairs to all the Receive pairs. I
say "logically" because this represents the information
flow. You can't physically connect all these wires together because all the
electrical signals would get messed up.
All you need, assuming both machines have an Ethernet RJ-45 connection, is a
cross-over cable. The cross-over cable works
only between two machines to connect one's transmit to the other's receive.
It's like a hub with only two ports.
You can
A. Buy a cross-over cable (my choice)
B. Make a cross-over cable
C. Make a cross-over plug, so you don't have any wierd cables around.
Good luck,
Kena Seguin
Robert Racki wrote:
> I just got digital tv and cable internet. The
> problem is the company wont help network at all the
> two computers I am trying to network. Two windows 98
> SE computers running rj-45 cable to a 4 port hub. The
> Cable modem runs fine plugged into either of the
> computers but when it is plugged into the hub it
> doesnt work. The modem came with no software to
> actually look for the modem. We had to go through the
> company we went with which is cox in Rhode island and
> buy another ip address for the computers to connect
> and it still does not work though the hub.
>
> Is there something I am missing. We connected it so
> all the settings match the settings they gave us.
>
> Robert Racki Jr.
>
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