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Thread: VPN AND NETGEAR ROUTER

  1. #1
    glenn.r.holder@delphi.com
    Guest

    VPN AND NETGEAR ROUTER

    I'm not sure anyone can help, however, I would appreciate some
    advice. I have a Dell Laptop (Latitude D610) equipped with an AT&T
    Global Client VPN. The router I am using at home is a NETGEAR WGR614
    v6, supplied by my broadband cable company. I have 3 home computers
    using the router without any issue. However, when I run my laptop (4th
    computer) accessing my company website, using the VPN, my laptop will
    "reboot" itsself anywhere from 1/2 hour to 2 hours later.This does not
    happen when I bypass the router and run directly off the broadband
    line. I've reset the router, bu that does not seem to help. Looking
    for help!! Thanks, in advance.

  2. #2
    Stephen J. Bevan
    Guest

    Re: VPN AND NETGEAR ROUTER

    glenn.r.holder@delphi.com writes:
    > I'm not sure anyone can help, however, I would appreciate some
    > advice. I have a Dell Laptop (Latitude D610) equipped with an AT&T
    > Global Client VPN. The router I am using at home is a NETGEAR WGR614
    > v6, supplied by my broadband cable company. I have 3 home computers
    > using the router without any issue. However, when I run my laptop (4th
    > computer) accessing my company website, using the VPN, my laptop will
    > "reboot" itsself anywhere from 1/2 hour to 2 hours later.This does not
    > happen when I bypass the router and run directly off the broadband
    > line. I've reset the router, bu that does not seem to help. Looking
    > for help!! Thanks, in advance.


    If the laptop is rebooting then the bug is either in the AT&T VPN
    Client or some other software on the laptop. You didn't say which
    version you are using so if isn't the latest (7.3) then try upgrading.
    If you are using the latest version then submit a bug report about the
    AT&T VPN Client.

    As to why the reboot only occurs when behind the NETGEAR, then one
    possibility is that the bug in the VPN client is related to NAT. When
    you directly connect then there is no NAT and so the IKE protocol that
    the VPN client uses does not detect any NAT and so all the encrypted
    traffic uses the ESP protocol (protocol 50) directly. When you
    connect via the NETGEAR I assume you have it setup to NAT all outbound
    traffic. Thus the IKE protocol would detect NAT that the NETGEAR is
    doing and extra code is run to handle the NAT and change the encrypted
    traffic to use UDP encapsulated ESP. Given that the reboot doesn't
    happen right away then the bug may related to re-keying or it could be
    an uninitialized memory read and most of the time it reads a benign
    value but if you run it long enough then eventually the uninitialized
    value is not benign and it causes a crash and reboot.

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