ICAP

The Internet Content Adaptation Protocol (ICAP) is a lightweight HTTP-like protocol (request and response protocol), which is used to extend transparent proxy servers. This frees up resources and standardizes the way in which new features are implemented. ICAP is usually used to implement virus scanning and content filters in transparent HTTP proxy caches.

The ICAP allows ICAP Clients to pass HTTP / HTTPS messages to ICAP Servers for content adaptation. The ICAP Server executes its transformation service on these HTTP / HTTPS messages and sends responses to the ICAP Client, usually with modified HTTP / HTTPS messages. The adapted HTTP / HTTPS messages can be HTTP / HTTPS requests, or HTTP / HTTPS responses.

You can configure a Security Group A logical group of Security Gateway Modules that provides Active/Active cluster functionality. A Security Group can contain one or more Security Gateway Modules. Security Groups work separately and independently from each other. To the production networks, a Security Group appears a single Security Gateway. as an ICAP Client to send the HTTP / HTTPS messages to ICAP Servers for content adaptation.

A Security Group configured for ICAP can work with third party ICAP devices without changing the network topology.

For more information, see the R80.20 Threat Prevention Administration Guide.