Mac Pro - OS X. Can't get 2nd Eithernet Port To Bind into VMWare or Parallels

Discussion in 'Mac OS X Server, Xserve, and Networking' started by Thelazer, Aug 3, 2013.

  1. Thelazer macrumors newbie

    Aug 3, 2013
    Hi Everyone.

    I've setup my Mac Pro, to have two unique IP addresses. With the intention of using one IP on a Windows OS install running on VMWare Fusions and the other IP for the Mac OS itself.

    I'm able to get the port configured okay in OSX. The mac is picking up the assigned IP I've given it. The 2nd port on the card, is static assigned and also working (That is, if I disable port 1, port 2 takes over and the mac IP changes)

    But from that point, I'm not able to get VMWare fusions to connect to Port two. I've changed the settings in VMware, to point to the port and restarted several times with no luck. Windows just shows as having no internet access. If I change WMware back to port one, windows is then able to connect okay.

    Thinking that, perhaps it's just VMware, I installed Parallels and loaded up the free Google OS thing.. and, same results, Parallels assigned to share the Mac IP works great.. but setting it to use the 2nd Ethernet port, no luck, no internet connection.

    Is there, something in OSX that I'm missing, that I have to do some extra config to tell OsX to allow the card to "see" the VMware install etc?

  2. monkeybagel macrumors 65816

    Jul 24, 2011
    United States
    What exactly are you trying to accomplish? Why are you assigning an IP Address in OS X to the one you want Windows to use?
  3. Kasalic macrumors regular

    Jan 20, 2011
    From what you have described the issue is with the network config on VMWare Fusion. I have a client with an identical setup, they run a Mac Pro and use a Paging system which has to be on a specific subnet and this does not work with Host or NAT settings. You will need to set the network adaptor to Bridged mode, what I can't remember is where I specified that the virtual adaptor was assigned to the 2nd network card. I think we use Parallels rather than VMWare, and unfortunately I cannot connect remotely at the moment to check the settings.
  4. Thelazer thread starter macrumors newbie

    Aug 3, 2013
    A little more info and a few screen shots. First, someone asked what I am trying to accomplish. Very simple, I would like to run Windows 7, XP and other OS's on my mac, thru VMare or Fusions and have them use a unique IP address.

    Kaslic, Here are a couple screen shots from how I have this setup. From what I know about Macs and Networking.. this should do it, but as you can see from the IP chicken results, no luck...

    Here we see that the Mac I have is up and running on it's unique IP (Ethernet 1) and the 2nd slot on the card is assigned it's own unique IP.,nnoV771,1kfWhQc

    Here is the selection in Parallels, with the VM powered off, the 2nd internet card is selected.,nnoV771,1kfWhQc#1

    Finally, I've started up the VM (chrome) in this case. As you can see, it's not seeing a internet connection when assigned to the 2nd card. If I set the VM machine to share the main mac IP, I am able to login just fine on chrome.,nnoV771,1kfWhQc#2

    BTW - This is a pretty stock OsX install.. nothing fancy added to it etc.
  5. alexrmc92 macrumors regular

    Feb 7, 2013
    You idea of VM networking isn't quite right. I'm assuming you want chrome to have the IP address of To do this you change the adapter in OS X to off and configure the manual IP in chrome.

    The IP is not assigned from OS X to Chrome. Parallels and Fusion act like an ethernet hub and will plug chrome directly into your network without OS X even knowing about it. When you plug a cable into port 2 on your mac you are actually plugging into a hub where Chrome and OS X are connected into.
  6. Thelazer thread starter macrumors newbie

    Aug 3, 2013
    Thank you, MonkeyBagel!!

    I now have the unique IP on the virtual machine.
  7. Steve247 macrumors member


    Dec 19, 2007
    in the 'burbs of Toronto
    Please explain how you got it o work

    Please explain. And why are you thanking MonkeyBagel?

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