ZyXEL 35 ユーザーガイド

 

 

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configure the mail send from VPN or to VPN and then mail can be inspected by the spam 

mail server. 

 

5. 

The above three steps are used to enforce the security policy for VPN traffic and the VPN 

tunnel can decrease the threat from intrusion, malice attack, virus, worm, Trojan and spam 

mail flooding.   

 

 

1. 

The switch to enable the content filtering over VPN traffic is available in Content Filter 

general configuration page. The content filtering over VPN can only be enabled after the 

content filter global switch enabled otherwise the enable content filter for VPN traffic option 

will be gray out.