Delboy’s Blog

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Apple AirPort Extreme Base Station and VPN Update

This weekend I found a fix to my VPN problem. I have tried this and it worked no problem

To Use the latest patch to Apple AirPort Extreme and the Nortel VPN client do the following with the latest version of the Nortel VPN client (v6.01).

1.) Update your airport utility to 7.3.1
2.) Reserve a IP address based on your computers MAC address so that your TC dhcp gives you always the same IP address. You can do that with airport utility/Internet/DHCP/DHCP-Reservations
3.) Create a port forwarding under airport utility/advanced/port forwarding.
a.) Create a customized port forwarding for public UDP port 500 to private UDP port 500 for the private IP address you assigned in step 2.) to your computer
b.) Create a customized port forwarding for public UDP port 10001 to private UDP port 10001 for the private IP address you assigned in step 2.) to your computer
c.) Create a customized port forwarding for public TCP port 50 to private TCP port 50 for the private IP address you assigned in step 2.) to your computer
d.) Create a customized port forwarding for public TCP port 51 to private TCP port 51 for the private IP address you assigned in step 2.) to your computer
4.) Update your TC
5.) Disable “Keepalives” in your Nortel Contivity tool under “options”
6.) Do not check “silent keepalives” in your Contivity client under “options”
7.) Try to establish a connection and wait until Contivity tried all availible connections.

Let me know if this works

Here is a screen shot of the port setup

April 28, 2008 - Posted by Delboy | Apple, Technology | , , | 8 Comments

8 Comments »

  1. Dear Delboy,
    Firstly, I want to thank you for your blog and information. I have problems with my Airport Extreme and VPN Tunnel via Nortel.
    I tried to get your information into my airport extreme, but i think i made some mistakes, it doesnt works.
    If possible, i would like to send you some screenshots, that you can see my failure?
    Thanks in advance,
    Metin

    Comment by Metin Saglam | May 26, 2008

  2. Dear Delboy,
    Thats me again. It will be great, if you can show your screenshots. So, it will be useful.
    Thanks a lot.
    Metin

    Comment by Metin Saglam | May 26, 2008

  3. Metin, let me know if the screen shot helps
    Thanks
    Delboy

    Comment by Delboy | May 27, 2008

  4. Delboy,
    Firstly I want to thank you for your assistance and help!
    Let me explain, if I understand correctly:
    1. I have to reserve an IP address, based on my PC (10.0.1.20)under …DHCP-Reservation
    2. And now create a port forwarding under advanced/port forwarding (like same on your screnshot). I guess the “private ip adress” is my PC=10.0.1.20 ? Correct?
    3.And update Airport Extreme. OK. Fine.

    But I don’t understand your description under 3a to 3d. Do you have “one” port forwarding or “4″ different port forwarding?
    Sorry for my question, because I am not a technicians.

    Thanks in advance,

    Warm regards.

    Comment by Metin Saglam | May 28, 2008

  5. I am sorry, Delboy.

    I have here a link, maybe it’s useful for your also:
    http://discussions.apple.com/thread.jspa?messageID=4046689

    I think, a lot of people have the similar problems with their Airport Extreme and VPN connection via Nortel.

    Thank you and have a nice working day,
    Metin

    Comment by Metin Saglam | May 28, 2008

  6. You need to create 4 different forwarding ports for each PC with the VPN software installed on it. The screen shot is of the port forwarding for B

    Comment by Delboy | May 28, 2008

  7. Hello Delboy,
    It’s scary!
    I can’t connect to my company VPN. I would like send to you my screenshots (setting data), if you can provide me with your email-adress or do you have another idea to send the screenshots.
    I hope, you can see my failure. I am so sorry to disturb you.
    Thanks in advance.
    Metin

    Comment by Metin Saglam | May 28, 2008

  8. Hello Delboy,

    Thank you very much, your settings even worked with cisco vpn, you really did a great job with this blog. My Computer works with airport extreme & with vpn as well. Thanks again.. you are great..

    Take care Maya

    Comment by Maya Klinova | June 12, 2008

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