Switching from Transparent Mode to Explicit Mode

This page describes the steps required to make the transition from a Transparent Deployment to an Explicit Deployment.

To transition from a Transparent to an Explicit deployment:

  1. Ensure the web appliance’s LAN port is connected to an area of your network that is accessible to your client systems. Also ensure that your router or firewall does not redirect any traffic to your web appliance.
  2. On the Configuration > Network > Network Interface page, change the Deployment mode from Transparent to Explicit proxy.
  3. Configure each user’s web browser to use the web appliance via port 8080 as their web proxy for HTTP, HTTPS, and FTP. (Ports 3128 and 8081 are also supported, but their use is only suggested if the web appliance is replacing a previous proxy configuration that used one of these ports.)
    Note To add support for HTTPS applications that use non-standard ports, see Add Local Classification.
    Note Configuring all users’ browsers to use the web appliance as a web proxy can be done centrally in Windows networks by using one of several methods. See the Sophos Knowledgebase pages for instructions on how to do this by: