Related tasks
Configuring Firefox for Active Directory in Transparent mode or Bridged mode on page 202
Configuring WCCP on page 153
2.3.2.1 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:
■
Creating, Testing, and Deploying a proxy.pac File
■
Publishing Proxy Info as a wpad.dat File
■
Creating a GPO
2.3.3 Bridged Deployment
This deployment is similar to Transparent Deployment in that all outbound network traffic flows
through the Web Appliance. Bridged Deployment, however, requires the optional bridge card
included with some appliance models.
■
Inspects HTTP and HTTPS traffic.
■
Only the Web Appliance requires configuration.
■
If it fails, you must power down the Web Appliance, but network traffic will continue to flow.
Operation
This deployment uses the Web Appliance’s bridge card, with the Network Interface page’s
Deployment mode set to Bridged. In this configuration, the Configuration port to which you
connect your laptop or PC to run the setup wizard still appears along the bottom of the appliance,
as illustrated in the diagram below (to the right of the middle on the back of the appliance ), but
this is the only RJ45 port at that location.
Sophos Web Appliance | Getting Started | 31
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