Installation guide

Trend Micro™ InterScan™ Web Security Virtual Appliance 6.5 Installation Guide
1-10
For further details on the Transparent Bridge Mode, see Deploying in Transparent Bridge
Mode on page 2-33.
Forward Proxy Mode
IWSVA acts as an upstream proxy for network clients. Client browser settings must be
configured to redirect traffic to IWSVA. IWSVA scans HTTP and FTP traffic and there
is no separate need for another dedicated proxy server. Content is scanned in both the
inbound and outbound directions.
The Forward Proxy Mode also forwards all traffic to another upstream proxy server.
For more details on the Forward Proxy mode, see Deploying in Forward Proxy Mode on page
2-10.
Reverse Proxy Mode
IWSVA is deployed in front of a Web server. IWSVA scans HTTP and FTP content
from the clients that are uploaded to a Web server as well as content that is downloaded
from the Web server to the clients and helps secure the Web server.
For more details on the Reverse Proxy Mode, see Deploying in Reverse Proxy Mode on page
2-29.
ICAP Mode
IWSVA acts as an ICAP proxy and accepts ICAP connections from an ICAP v1.0
compliant cache server. Cache servers can help reduce the overall bandwidth
requirements and reduce latency by serving cached content locally. IWSVA scans and
secures all content returned to the cache server and to the clients.
For more details on the ICAP mode, see Deploying in ICAP Mode on page 2-23.
Simple Transparency Mode
IWSVA's Forward Proxy Mode supports simple transparency with popular Layer 4 load
balancing switches and provides HTTP scanning without the need to modify the client's
browser settings.