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Chapter 7
Security Configuration
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Firewall
The Firewall screen is used to configure a firewall that can filter out various types of
unwanted traffic on the residential gateway’s local network.
Path:
Security > Firewall
Intrusion Detection Protection
To use Intrusion Detection System (IDS) and
Denial of Service (DoS) protection, select
Enabled
. Otherwise, keep the default,
Disabled
.
Web Content Filtering
To filter web content, keep the default, Enabled. Otherwise,
select Disabled. (This feature must be enabled to use the Website Blocking options
on the Access Restrictions > Internet Access Policy screen.)
Max Firewall Sessions
Enter the maximum number of firewall sessions that will
be processed at any given time.
Max QoS Sessions
Enter the maximum number of QoS sessions that will be
processed at any given time.
SIP ALG
The SIP ALG feature assists VoIP phones behind the residential gateway
when NAT problems are encountered. This feature also assists QoS (when enabled)
with automatic classification of SIP- and RTP-related traffic. To use the SIP ALG
feature, keep the default,
Enabled
. Otherwise, select
Disabled
.
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Firewall
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Firewall Profile
Apply Firewall Profile
For a low level of firewall protection, keep the default,
Low
. For a high level of firewall protection, select
High
. To disable the firewall,
select
Off
.
To configure user-based security rules, click
Access Restrictions
. (Refer to the
Internet Access Policy
(see on page 91) section for details.)
Click
Save Settings
to apply your changes, or click
Cancel Changes
to cancel your
changes.
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Page 109 / 164
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Introduction
This chapter describes setting up an Intranet Access Policy to manage
the access restrictions for your residential gateway.
8
Chapter 8
Access Restrictions
In This Chapter
Internet Access Policy
..........................................................................
90
Page 110 / 164
Chapter 8
Access Restrictions
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Internet Access Policy
This Access Restrictions screen is used to set up and manage Internet access policies.
An Internet Access Policy allows you to block or allow specific kinds of Internet
usage and traffic, such as Internet access, designated services, and websites during
specific days and times.
Path:
Access Restrictions > Internet Access Policy

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