Symantec Web Gateway has an integrated proxy. The Symantec Web Gateway proxy can perform as a traditional FTP, HTTP, and SOCKS proxy. The Symantec Web Gateway proxy can also decrypt SSL-encrypted network traffic for URL content filtering, blacklisted-domain matching, and malware. The Symantec Web Gateway proxy lets you route network traffic through a Symantec Data Loss Prevention server. SSL-encrypted network traffic can also be routed to and inspected by Symantec Data Loss Prevention. You must enable the Symantec Web Gateway proxy to use some features.
Symantec Web Gateway is designed to load balance your proxy traffic across multiple HTTP/S proxy ports within one proxy server. However, if you do not intend to use all four default ports, you can improve performance if you change the port configuration to only the port(s) that you use.