ZyXEL Communications Centralized Network Management Vantage CNM, Руководство пользователя

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Chapter 6 Device Security Settings
Vantage CNM User’s Guide
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6.5 Anti-Spam
This section shows you how to configure the Anti-Spam screens. These screens may vary
depending on which model you’re configuring. Please see the device’s User’s Guide for more
information about any of these screens or fields.
6.5.1 Anti-Spam General Screen
Click Device Operation in the menu bar and then click Device Configuration > Security >
Anti-Spam > General in the navigation panel to open the Anti-Spam General screen. Use
this screen to turn the anti-spam feature on or off and set how the device treats spam.
Active Select Active to enable the anti-virus scanner for the selected service.
From, To Select the directions of travel of packets that you want to check. Select or clear a
row or column’s first check box (with the interface label) to select or clear the
interface’s whole row or column.
For example,
From LAN To LAN means packets traveling from a computer on one
LAN subnet to a computer on another LAN subnet on the LAN interface of the
device or the device itself. The device does not check packets traveling from a
LAN computer to another LAN computer on the same subnet.
From VPN means traffic that came into the device through a VPN tunnel and is
going to the selected “to” interface. For example, From VPN To LAN specifies the
VPN traffic that is going to the LAN or terminating at the device’s LAN interface.
The device checks the traffic after decrypting it.
To VPN is traffic that comes in through the selected “from” interface and goes out
through any VPN tunnel. For example, From LAN To VPN specifies the traffic that
is coming from the LAN and going out through a VPN tunnel. The device checks
the traffic before encrypting it.
From VPN To VPN means traffic that comes in through a VPN tunnel and goes out
through (another) VPN tunnel or terminates at the device. This is the case when
the device is the hub in a hub-and-spoke VPN. This is also the case if you allow
someone to use a service (like Telnet or HTTP) through a VPN tunnel to manage
the device. The device checks the traffic after decrypting it (before encrypting it
again).
Note: The VPN connection directions apply to the traffic going to or
from the device’s VPN tunnels. They do not apply to other
VPN traffic for which the device is not one of the gateways
(VPN pass-through traffic).
Apply Click Apply to save your changes.
Reset Click Reset to start configuring this screen again.
Table 54 Device Operation > Device Configuration > Security > Anti-Virus > General
LABEL DESCRIPTION