ZyWALL 5 Support Notes
All contents copyright (c) 2006 ZyXEL Communications Corporation.
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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.
How to configure Web filtering rule over VPN – Content Filter
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.
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