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IWSVA can act 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. However, the Application Control reports and polices will not function in proxy mode because IWSVA only sees the HTTP, HTTPS, and FTP protocols.
Forward Proxy Mode also provides the following additional capabilities:
Forwards all traffic to another upstream proxy server
Participates in a proxy chain configuration with other proxy servers and supports X-Forwarded-For functionality