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How do I enable PPTP Pass Through and IPSec Pass Through for my Linksys Router?

The first thing you will want to do is access your Linksys router's web interface.
  1. Double-click the Internet Explorer icon on your Desktop.

  2. The default IP Address of a Linksys Router is 192.168.1.1.  In the Internet Explorer Address Bar, enter the following: http://192.168.1.1

  3. Hit the enter key on your keyboard or click Go.  You should now be prompted for the administrative username/password for your router.  If you are prompted for the administrative username/password, proceed to Step 4.  If you are not prompted for the administrative username/password, your router is located at a different IP Address.  To determine that IP Address, do the following:

    a.  Click the Start Button.

    b.  Click Run.

    c.  Type the following: cmd

    d.  Hit the Enter key on your keyboard.

    e.  Type the following: ipconfig

    f.  The Default Gateway Address is most likely the IP Address of your Linksys Router.  Perform Step 2 again using the Default Gateway IP Address.
  4. The default username/password for a Linksys Router is the following - Username: [Blank - No Entry - Skip This Field], Password: admin

  5. You should now have access to the configuration of your Linksys Router.  Depending upon the model of Linksys router that you have, the location for enabling PPTP Pass Through may be in a different location.

    For a Linksys WRT54GS Router, you should only have to:

    a.  Click Security.

    b.  Click on Enable next to IPSec Pass Through.

    c.  Click on Enable next to PPTP Pass Through.

    d.  Or you may have to click on Security and then VPN Pass Through and then click on Enable next to PPTP Pass Through and IPSec Pass Through.

    e.  Click Save Settings.
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