User manual
Firewall 
180
Check Virus check web downloads. 
Check Reject overly large downloads to have the SG unit treat oversized downloads as 
potential viruses and reject them. The definition of an overly large download is specified 
by the Maximum size field on the main Antivirus tab. 
Click Submit. 
FTP 
The SG unit can scan files downloaded using FTP for viruses. 
Check Virus check FTP downloads. 
Typically there is no need to change the Proxy port on which the transparent proxy 
listens for connections. 
If an FTP connection is idle for the number of seconds specified by No activity timeout, 
it is automatically disconnected. Increase this only if you are experiencing timeouts 
during FTP sessions. 
You may specify the Maximum simultaneous connections to allow. This is the total 
number of FTP connections allowed from your LAN. Once this number is reached, 
subsequent FTP connections are rejected until previous FTP connections are 
disconnected.  More resources are consumed by virus scanning when a higher number 
of simultaneous FTP connections are established. 










