Weird behavior with EVDO Modem

Discussion in 'Parallels Desktop for Mac' started by macjafo, Dec 5, 2006.

  1. macjafo

    macjafo Bit poster

    Messages:
    1
    Hey Guys,

    I currently have a XP VM that easily connects via shared networking when I am connected to wireless, ethernet, or evdo. The issue appears when I add vpn services on top of that. I launch my VPN client from the mac side of the house and everything works fine for the VM unless I am on EVDO. If I am on EVDO the VM can no longer talk through shared networking.

    A couple of things.
    All my network ports are in automatic
    Internet sharing is not enabled for any of those interfaces
    I have tried HUP on the pvsnatd process - didn't help

    So I am basically running out of ideas. It used to work somewhat on 1970 but still had issues and is now totally shut down in the 36 and 38 builds.

    I am tried this both using the internal drivers for my 640 as well as the verizon client.

    Here is another fun thing... If I ping from the VM I can get what I am looking for, and DNS works fine. The issues is with web and with outlook. So I am guessing I have an MTU problem that is causing the issue to some degree. I have tried tweaking the VM down to 1300 MTUs and 1100 (windows registry) and it did not help the issue much. I am thinking that I might need to also make those same changed on the parallels side but I don't see any place to change that.

    Thoughts or suggestions appreciated.

    -K
     
  2. serv

    serv Forum Maven

    Messages:
    817
    macjafo,

    Your Mac ifconfig when VPN over EVDO is active may shed some light on the problem.
    You can also try pinging remote hosts from VM with different payload sizes to determine the actual MTU.
    And you can capture network traffic in Windows when trying to Google for lengthy strings to see when TCP problems arise. Also look closely for ICMP unreachable replies if any.
     

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