Interesting issue - OS related?

Discussion in 'MacBook Pro' started by SmoothJ, Mar 1, 2011.

  1. SmoothJ macrumors member

    Oct 19, 2010
    Well, here is my situation…

    I have the following setup at home:

    Cisco Modem -> Cisco SA520 -> Dell 2816 -> MBP
    (SA520 DMZ)-> Linux web server

    I can ping the web server without any issues, however when trying to do a SCP or SSH, the ethernet on the MBP drops and even though I still have a IP, I can't go out or ping. I would have to do a down and up for me to get ethernet connectivity back.

    MBP's IP is
    Server's IP is
  2. SmoothJ thread starter macrumors member

    Oct 19, 2010
  3. DarkVinda macrumors regular


    Sep 9, 2010
    Manchester, UK
    one thing i do know is that the ip's are in 2 seperate class's

    192.168 is one bracket and the servers is a different...

    basically like saying 192.168. is class 1 (FOR EXAMPLE)
    and 10.0 is class 2 - if i remember rightly then dont play well together!!!

    does your router not auto assign ip's...from DCHP???
  4. ddoolin0 macrumors regular

    Feb 24, 2011
    That indeed sounds like it would be a problem on your end, specifically on your MacBook. Sorry, I can't say how to fix it aside from trying another computer to make sure.
  5. SmoothJ thread starter macrumors member

    Oct 19, 2010
    It is auto assign, however I have routing turned on between the two networks. So thats why I am able to ping and etc.

    I have another MBP from work that I can try. If it works its one of several things; the drivers for the chipset are messed up, my NIC is having issues, or I need to do a fresh install (even though the system is a couple of days old).

    However if it was the NIC then how come I can ssh and scp to external areas out in the internet, like my webserver.

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