ZyXEL Vantage CNM User Guide - Page 176

IDP Signatures

Page 176 highlights

Chapter 6 Device Security Settings Table 61 Device Operation > Device Configuration > Security > IDP > General LABEL DESCRIPTION From, To Select the check box to apply IDP to packets based on the direction of travel. 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-andspoke 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). Apply Reset 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). Click this button to save your changes back to the device. Click this button to begin configuring this screen afresh. 6.9 IDP Signatures The rules that define how to identify and respond to intrusions are called "signatures". Click Device Operation > Device Configuration > Security > IDP > Signature to see the device's signatures. 6.9.1 Attack Types In the Device Operation > Configuration > Security > IDP > Signature screen, the Attack Type list box displays all intrusion types supported by the device. Other covers all intrusion types not covered by other types listed. 176 Vantage CNM User's Guide

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Chapter 6 Device Security Settings
Vantage CNM User’s Guide
176
6.9
IDP Signatures
The rules that define how to identify and respond to intrusions are called
“signatures”. Click
Device Operation
>
Device Configuration >
Security >
IDP
>
Signature
to see the device’s signatures.
6.9.1
Attack Types
In the
Device Operation
>
Configuration > Security >
IDP
>
Signature
screen, the
Attack Type
list box displays all intrusion types supported by the
device.
Other
covers all intrusion types not covered by other types listed.
From, To
Select the check box to apply IDP to packets based on the direction of
travel. 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 this button to save your changes back to the device.
Reset
Click this button to begin configuring this screen afresh.
Table 61
Device Operation > Device Configuration > Security > IDP > General
LABEL
DESCRIPTION