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From: Salmon Egg on 17 Feb 2010 15:05
I have continuing questions my Mac Pro.

There are two Ethernet ports on the computer. I set up an internet
connection using a DSL modem. I used an Ethernet cable connected to
Ethernet Port 1 on the computer. When I then replugged the cable from
the modem into Port 2 instead of into Port 1, I did not get a working
connection.

Is this normal behavior?

Does a connection to an Ethernet port have to be customized to that
particular port?

I did notice that my network preference pane had indications of there
being an "Ethernet 1" and an "Ethernet 2" that I never remember
designating with a 1 or 2.

Bill

--
An old man would be better off never having been born.
From: JF Mezei on 17 Feb 2010 15:17
Salmon Egg wrote:

> Does a connection to an Ethernet port have to be customized to that
> particular port?

Yes.

You go to the system preferences, network.

You'll find that your ethernet devices on the left each have an
associated config. So if Ethernet 1 was configured, but ethernet 2 was
not, then when the cable is plugged into ethernet 2, nothing will happen.
From: Salmon Egg on 17 Feb 2010 16:44
In article <4b7c4edd$0$31980$c3e8da3(a)news.astraweb.com>,
JF Mezei <jfmezei.spamnot(a)vaxination.ca> wrote:

> Salmon Egg wrote:
>
> > Does a connection to an Ethernet port have to be customized to that
> > particular port?
>
> Yes.
>
> You go to the system preferences, network.
>
> You'll find that your ethernet devices on the left each have an
> associated config. So if Ethernet 1 was configured, but ethernet 2 was
> not, then when the cable is plugged into ethernet 2, nothing will happen.

Thank you very much. I was getting pushed toward such a conclusion, but
iyt is good to be confirmed.

Bill

--
An old man would be better off never having been born.
From: queries0 on 17 Feb 2010 17:33
On Feb 17, 4:48 pm, Michael Vilain <vil...(a)NOspamcop.net> wrote:
> In article <SalmonEgg-7797AD.12054817022...(a)news60.forteinc.com>,
>  Salmon Egg <Salmon...(a)sbcglobal.net> wrote:
>
>
>
>
>
> > I have continuing questions my Mac Pro.
>
> > There are two Ethernet ports on the computer. I set up an internet
> > connection using a DSL modem. I used an Ethernet cable connected to
> > Ethernet Port 1 on the computer. When I then replugged the cable from
> > the modem into Port 2 instead of into Port 1, I did not get a working
> > connection.
>
> > Is this normal behavior?
>
> > Does a connection to an Ethernet port have to be customized to that
> > particular port?
>
> > I did notice that my network preference pane had indications of there
> > being an "Ethernet 1" and an "Ethernet 2" that I never remember
> > designating with a 1 or 2.
>
> > Bill
>
> Don't know the particulars of your Mac Pro, but AFAIK, only a hub has a
> specific port for the network/cable modem.  Both ports _should_ work.
>
> Can you elaborate on what you mean by "I did not get a working
> connection".  
>
> Can you ping the router when it's connected through Port 2?
>
> Can you ping a system on the Internet when it's connected through Port
> 2?  Does DNS work or are you stuck with IP addresses only?
>
> If these questions are meaningless to you, take your system and modem to
> an Apple Genius Bar.  Someone can help you there.
>
> --

Related question: I would like a Mac with two ethernet ports, one
connected to my local network and one public. A Mac Mini would be more
than sufficient but I understand it cannot be configured with two
ethernet interfaces. Any solution other than buying a Mac Pro?

Any advice appreciated
From: Doug Anderson on 17 Feb 2010 17:40
queries0 <queries0(a)gmail.com> writes:

> On Feb 17, 4:48�pm, Michael Vilain <vil...(a)NOspamcop.net> wrote:
> > In article <SalmonEgg-7797AD.12054817022...(a)news60.forteinc.com>,
> > �Salmon Egg <Salmon...(a)sbcglobal.net> wrote:
> >
> >
> >
> >
> >
> > > I have continuing questions my Mac Pro.
> >
> > > There are two Ethernet ports on the computer. I set up an internet
> > > connection using a DSL modem. I used an Ethernet cable connected to
> > > Ethernet Port 1 on the computer. When I then replugged the cable from
> > > the modem into Port 2 instead of into Port 1, I did not get a working
> > > connection.
> >
> > > Is this normal behavior?
> >
> > > Does a connection to an Ethernet port have to be customized to that
> > > particular port?
> >
> > > I did notice that my network preference pane had indications of there
> > > being an "Ethernet 1" and an "Ethernet 2" that I never remember
> > > designating with a 1 or 2.
> >
> > > Bill
> >
> > Don't know the particulars of your Mac Pro, but AFAIK, only a hub has a
> > specific port for the network/cable modem. �Both ports _should_ work.
> >
> > Can you elaborate on what you mean by "I did not get a working
> > connection". �
> >
> > Can you ping the router when it's connected through Port 2?
> >
> > Can you ping a system on the Internet when it's connected through Port
> > 2? �Does DNS work or are you stuck with IP addresses only?
> >
> > If these questions are meaningless to you, take your system and modem to
> > an Apple Genius Bar. �Someone can help you there.
> >
> > --
>
> Related question: I would like a Mac with two ethernet ports, one
> connected to my local network and one public. A Mac Mini would be more
> than sufficient but I understand it cannot be configured with two
> ethernet interfaces. Any solution other than buying a Mac Pro?

Yes. For example:

http://www.microcenter.com/single_product_results.phtml?product_id=0308183

There are others, possibly lots of others. The idea is a piece of
hardware that uses one of your USB ports to make a second ethernet
port.
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