Mac Pro Ethernet Connections?
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From: queries0 on 17 Feb 2010 17:55 On Feb 17, 5:40 pm, Doug Anderson <ethelthelogremovet...(a)gmail.com> wrote: > queries0 <queri...(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=03.... > > 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. Thanks for the reply and advice, sorry to be opaque, but with a USB adapter the interface can be configured as any normal ethernet interface could, and depending on software availability the computer can be configured to do NAT, ipfiltering, or whatever the OSX equivalents might be? Thanks again
From: David Empson on 17 Feb 2010 18:19 queries0 <queries0(a)gmail.com> wrote: > On Feb 17, 5:40 pm, Doug Anderson <ethelthelogremovet...(a)gmail.com> > wrote: > > queries0 <queri...(a)gmail.com> writes: > > > 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=03... > > > > 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. > > Thanks for the reply and advice, sorry to be opaque, but with a USB > adapter the interface can be configured as any normal ethernet > interface could, and depending on software availability the computer > can be configured to do NAT, ipfiltering, or whatever the OSX > equivalents might be? Yes, as long as you have the software to do the necessary work. natd, ipfw and routing support is standard on Mac OS X but you may need to do some work to configure it all. (Internet Sharing is a simple mechanism to do this.) Apple's USB Ethernet Adapter (nominally for the MacBook Air) seems to work fine with other models running Leopard or later. I bought one and tried it with my MacBook Pro, where it appeared in System Preferences (and to command line tools) as a new Ethernet interface (limited to 10/100 instead of Gigabit Ethernet). I haven't needed it on my Mac Mini Server yet, but if end up using the MMS as my primary router I will use the USB Ethernet adapter for the Internet connection, and the built-in Gigabit Ethernet port for the LAN. -- David Empson dempson(a)actrix.gen.nz
From: queries0 on 17 Feb 2010 18:25 On Feb 17, 6:19 pm, demp...(a)actrix.gen.nz (David Empson) wrote: > queries0 <queri...(a)gmail.com> wrote: > > On Feb 17, 5:40 pm, Doug Anderson <ethelthelogremovet...(a)gmail.com> > > wrote: > > > queries0 <queri...(a)gmail.com> writes: > > > > 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=03... > > > > 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. > > > Thanks for the reply and advice, sorry to be opaque, but with a USB > > adapter the interface can be configured as any normal ethernet > > interface could, and depending on software availability the computer > > can be configured to do NAT, ipfiltering, or whatever the OSX > > equivalents might be? > > Yes, as long as you have the software to do the necessary work. natd, > ipfw and routing support is standard on Mac OS X but you may need to do > some work to configure it all. (Internet Sharing is a simple mechanism > to do this.) > > Apple's USB Ethernet Adapter (nominally for the MacBook Air) seems to > work fine with other models running Leopard or later. > > I bought one and tried it with my MacBook Pro, where it appeared in > System Preferences (and to command line tools) as a new Ethernet > interface (limited to 10/100 instead of Gigabit Ethernet). > > I haven't needed it on my Mac Mini Server yet, but if end up using the > MMS as my primary router I will use the USB Ethernet adapter for the > Internet connection, and the built-in Gigabit Ethernet port for the LAN. Thank you for the reply, seems the clear choice.
From: Doug Anderson on 17 Feb 2010 18:36 queries0 <queries0(a)gmail.com> writes: > On Feb 17, 5:40�pm, Doug Anderson <ethelthelogremovet...(a)gmail.com> > wrote: > > queries0 <queri...(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=03... > > > > 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. > > Thanks for the reply and advice, sorry to be opaque, but with a USB > adapter the interface can be configured as any normal ethernet > interface could, and depending on software availability the computer > can be configured to do NAT, ipfiltering, or whatever the OSX > equivalents might be? Yes, it will be the same as having two ethernet ports, and will present the same configuration options.
From: Salmon Egg on 18 Feb 2010 06:34 I performed an experiment. 1. I shut down my Mac Pro while I had a working DSL internet connection using one of the Ethernet ports on the computer. 2. I switched the Ethernet port on the computer into which the cable to the modem was plugged. 3. This morning I booted with the resulting connection. It did mot work. 4. I fiddled with the Network pane settings. I was not able to get a connection. I really do not have a good mental model of what these machinations do. 4. I switched the Ethernet cable back to the original port, the way it was before step 1 above. I did shut down the computer. I also used the same location to what it was before step 1. 5. Everything worked well. My key problem is that documentation is sketchy at best. Although a computer should be completely predictable, I find that I must reluctantly resort to experiment. Bill -- An old man would be better off never having been born.
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