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Trustwave Knowledge Base

Home » Knowledgebase » Legacy Products » Secure Web Gateway » Security Policies » INFO: SSL Authentication while using NG-5100 as a Next Proxy...

INFO: SSL Authentication while using NG-5100 as a Next Proxy Server

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  • Description
    When using an NG-5100 appliance as a next proxy for the NG-5400 SSL appliance, and using NTLM authentication on the NG-5100, all SSL traffic fails.

  • Symptoms
    The SSL traffic fails when the NG-5400 is configured as next proxy to the NG-5100. When the NG-5400 routes directly to the internet (and not through NG-5100 as next proxy) the SSL traffic works correctly.

  • Cause
    The NG-5100 tries to authenticate every session which passes through it. However, since the NG-5400 has no credentials to authenticate with which are compliant with NTLM authentication, the session fails and an error message is displayed to the user.

  • Solution
    While using authentication, an NG-5400 SSL appliance, as well as the NG-5100 appliance, MUST have direct access to the Internet.

    • This article was previously published as:
    Finjan KB 1268

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