Mcafee Email and Web Security 部署模式选择

The appliance operates in one of the following modes:
• Transparent Bridge
• Transparent Router
• Explicit Proxy
Carefully select the operational mode for the appliance because it affects how you integrate
your appliance into your network and how the appliance handles traffic. After you select the
mode, you do not need to change it unless you restructure your network. For details on
operational modes, see the Installation Guide.
System Setup Wizard


If the appliance is in Transparent Router or Transparent Bridge mode, and the protocol is
disabled, traffic for the protocol passes through the appliance, but is not scanned.
If the appliance is in Explicit Proxy mode, and a protocol is disabled, traffic directed to the
appliance for that protocol is refused. The protocol is blocked at the appliance.
In Explicit Proxy mode, only SMTP, POP3, HTTP, ICAP and FTP traffic is handled by the appliance. All other traffic is refused.

TIP: If the appliance is in Transparent Router or Transparent Bridge mode, you can prevent
scanning taking place for periods during the day by using transparent exceptions.