ZyXEL ZyWALL ATP700 User Guide - Page 524

Anomaly Detection and Prevention Overview

Page 524 highlights

Chapter 24 Security Policy Table 199 Configuration > Security Policy > Policy Control > Add (continued) LABEL DESCRIPTION User This field is not available when you are configuring a to-Zyxel Device policy. Select a user name or user group to which to apply the policy. The Security Policy is activated only when the specified user logs into the system and the policy will be disabled when the user logs out. Otherwise, select any and there is no need for user logging. Schedule Action Log matched traffic Profile Application Patrol Content Filter SSL Inspection OK Cancel Note: If you specified a source IP address (group) instead of any in the field below, the user's IP address should be within the IP address range. Select a schedule that defines when the policy applies. Otherwise, select none and the policy is always effective. Use the drop-down list box to select what the Security Policy is to do with packets that match this policy. Select deny to silently discard the packets without sending a TCP reset packet or an ICMP destination-unreachable message to the sender. Select reject to discard the packets and send a TCP reset packet or an ICMP destinationunreachable message to the sender. Select allow to permit the passage of the packets. Select whether to have the Zyxel Device generate a log (log), log and alert (log alert) or not (no) when the policy is matched to the criteria listed above.. Use this section to apply anti- x profiles (created in the Configuration > Security Service screens) to traffic that matches the criteria above. You must have created a profile first; otherwise none displays. Use Log to generate a log (log), log and alert (log alert) or not (no) for all traffic that matches criteria in the profile. Select an Application Patrol profile from the list box; none displays if no profiles have been created in the Configuration > Security Service > App Patrol screen. Select a Content Filter profile from the list box; none displays if no profiles have been created in the Configuration > Security Service > Content Filter screen. Select an SSL Inspection profile from the list box; none displays if no profiles have been created in the Configuration > Security Service > SSL Inspection screen. Click OK to save your customized settings and exit this screen. Click Cancel to exit this screen without saving. 24.5 Anomaly Detection and Prevention Overview Anomaly Detection and Prevention (ADP) protects against anomalies based on violations of protocol standards (RFCs - Requests for Comments) and abnormal flows such as port scans. This section introduces ADP, anomaly profiles and applying an ADP profile to a traffic direction. Traffic Anomalies Traffic anomaly policies look for abnormal behavior or events such as port scanning, sweeping or network flooding. They operate at OSI layer-2 and layer-3. Traffic anomaly policies may be updated when you upload new firmware. ZyWALL ATP Series User's Guide 524

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Chapter 24 Security Policy
ZyWALL ATP Series User’s Guide
524
24.5
Anomaly Detection and Prevention Overview
Anomaly Detection and Prevention (ADP) protects against anomalies based on violations of protocol
standards (RFCs – Requests for Comments) and abnormal flows such as port scans. This section
introduces ADP, anomaly profiles and applying an ADP profile to a traffic direction.
Traffic Anomalies
Traffic anomaly policies look for abnormal behavior or events such as port scanning, sweeping or
network flooding. They operate at OSI layer-2 and layer-3. Traffic anomaly policies may be updated
when you upload new firmware.
User
This field is not available when you are configuring a to-Zyxel Device policy.
Select a user name or user group to which to apply the policy. The Security Policy is activated
only when the specified user logs into the system and the policy will be disabled when the user
logs out.
Otherwise, select
any
and there is no need for user logging.
Note: If you specified a source IP address (group) instead of
any
in the field below, the
user’s IP address should be within the IP address range.
Schedule
Select a schedule that defines when the policy applies. Otherwise, select
none
and the policy is
always effective.
Action
Use the drop-down list box to select what the Security Policy is to do with packets that match this
policy.
Select
deny
to silently discard the packets without sending a TCP reset packet or an ICMP
destination-unreachable message to the sender.
Select
reject
to discard the packets and send a TCP reset packet or an ICMP destination-
unreachable message to the sender.
Select
allow
to permit the passage of the packets.
Log matched
traffic
Select whether to have the Zyxel Device generate a log (
log
), log and alert (
log alert
) or not (
no
)
when the policy is matched to the criteria listed above..
Profile
Use this section to apply anti- x profiles (created in the
Configuration > Security Service
screens)
to traffic that matches the criteria above. You must have created a profile first; otherwise
none
displays.
Use
Log
to generate a log (
log
), log and alert (
log alert
) or not (
no
) for all traffic that matches
criteria in the profile.
Application
Patrol
Select an Application Patrol profile from the list box;
none
displays if no profiles have been
created in the
Configuration > Security Service > App Patrol
screen.
Content
Filter
Select a Content Filter profile from the list box;
none
displays if no profiles have been created in
the
Configuration > Security Service > Content Filter
screen.
SSL
Inspection
Select an SSL Inspection profile from the list box;
none
displays if no profiles have been created in
the
Configuration > Security Service > SSL Inspection
screen.
OK
Click
OK
to save your customized settings and exit this screen.
Cancel
Click
Cancel
to exit this screen without saving.
Table 199
Configuration > Security Policy > Policy Control > Add (continued)
LABEL
DESCRIPTION