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SBG6700-AC (v8.6.x): VPN Passthrough Setup

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Information

 
Question
How do I enable the SBG6700-AC to pass VPN traffic to a VPN client on my network? 
Answer
In order to connect to a VPN from a VPN client that's connected to the SBG6700-AC, VPN traffic will need to be allowed to pass through the SBG6700-AC in order to establish the VPN connection.  By default, VPN passthrough is enabled.  This document describes how to allow PPTP VPN or IPsec VPN traffic to pass through the SBG6700-AC to a VPN client.
 

To Enable VPN Passthrough

  1. Launch a Firefox or Safari browser.  Enter http://192.168.0.1 into the address box, and press the Enter key.  

    NOTEA browser message on Chrome, Edge, Firefox, and Opera, may appear when accessing the Web Manager.  The message includes 192.168.01 uses an unsupported protocol and ERR_SSL_VERSION_OR_CIPHER_MISMATCH.  The Web Manager uses an earlier version of the TLS protocol and does not match the version allowed by the web browser.  Safari browsers on Apple PC and mobile devices are not impacted.  The workaround to access the Web Manager with a PC is to use the Firefox browser and set the TLS version to 1.  For workaround instructions refer to article # 19435 - 192.168.0.1 uses an unsupported protocol
     
  2. A security or private risk alert may appear on the web browser advising users to proceed with caution when accessing the Web Manager.  There is no risk in proceeding to the Web Manager.  For instructions to bypass the alert screen, refer to article # 18181 - Alert Message for Web Manager Access.
     
  3. On the Login page, enter admin or a customized username in the Username field.
     
  4. Enter password or a customized password in the Password field.

    NOTE: On later versions of the SBG6700-AC, the Wi-Fi Security Key is used as the default admin password printed on the bottom white label.  For assistance with Web Manager Access, refer to article # 18754 – SBG6700-AC: Web Manager Access.

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  5. Click the Login button.  The Home page will appear.
     
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  6. Move the mouse cursor over the Advanced tab, and select the Options sub-link.  The Advanced - Options page will appear.

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  7. On the Advanced - Options page:
    a.   For a PPTP VPN, check the PPTP Pass-through and PPTP options (shown below in green).
    b.   For an IPsec VPN, check the IPsec Pass-through and IKE options (shown below in red).
    c.   Click the Apply button.  The SBG6700-AC has now been configured to pass VPN traffic to a VPN client.
     
    NOTE: A restart is not required for these settings to take effect.
     
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