[Lula] Lula Digest, Vol 4, Issue 6

[Bob Pegram]

The original advice is backwards. A crossover cable should be used between
computers and between a computer and a DSL modem. A straight-through cable
(a standard ethernet cable) should be used between a computer and a router
and between a router and a DSL modem.

Bob Pegram

on 2/21/07 9:00 AM, lula-request at lula.org at lula-request at lula.org wrote:

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> Today's Topics:
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> 1.  Question concerning ethernet wiring (rcdawson at att.net)
> 2. Re:  Question concerning ethernet wiring (Shane Chen)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Wed, 21 Feb 2007 05:42:10 +0000
> From: rcdawson at att.net
> Subject: [Lula] Question concerning ethernet wiring
> To: lula at lula.org
> Cc: sphilips4 at aol.com
> Message-ID:
> <022120070542.471.45DBDBB20008A907000001D7216028074802019C990E0B0C9D at att.net>
> 
> 
> My friend's RCA cable modem has both USB or ethernet connection points.  I
> have a question about its ethernet connection.  The instruction manual says
> that in order to connect a single computer to the modem you must use a
> straight through cable, but if you are to connect multiple computers using a
> hub or a "hub within a port switch that provides the same function," then you
> must connect the hub (or hub within a port switch) to the modem with a
> crossover cable  
> 
> Of course I didn't read the instructions before trying to set this up for my
> friend, so I  spent many frustrating hours with the modem and my computer both
> connected to a router with straight through cables. I won't try this again
> until next weekend, but I assume it will work if, as the instructions advise,
> I use a crossover cable between the modem and the router.
> 
> My question:  is this a standard way of doing things?  My home installation
> has a DSL modem, a router, and several computers all connected together with
> straight through cables.  I have never tried to connect two computers together
> directly, but I understand that if one does, one must use a crossover cable.
> 
> Who is following the standard, my DSL modem manufacturer or RCA?  Or is it
> left to the discretion of the manufacturer?  How does one refer to the
> "polarity" of a connection point?
> 
> I realize this question may be a bit off-topic, but where else could I find
> such a knowledgeable bunch of folks?
> 
> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Wed, 21 Feb 2007 00:12:22 -0800
> From: "Shane Chen" <shane at electricmonk.org>
> Subject: Re: [Lula] Question concerning ethernet wiring
> To: lula at lula.org
> Cc: sphilips4 at aol.com
> Message-ID:
> <e75e16af0702210012w3057572bwd279ac240142cad5 at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> 
> On 2/20/07, rcdawson at att.net <rcdawson at att.net> wrote:
>> a hub or a "hub within a port switch that provides the same function,"
>> then you must connect the hub (or hub within a port switch) to the modem
>> with a crossover cable
> 
> Depends on the hub or switch.  Some have an "uplink" port that's
> naturally crossed.  Others have a switch to toggle it.  The newer
> switches auto-detect the wiring and flip it on its own.
> 
>> instructions advise, I use a crossover cable between the modem and the
>> router.
> 
> Can't hurt.
> 
> Shane
> 
> 
> 
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> End of Lula Digest, Vol 4, Issue 6
> **********************************
>