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Page 66 / 74 Scroll up to view Page 61 - 65
Gateway Configuration Screen Definitions
SURFboard® SBG6580 Wireless Cable Modem Gateway
•
User Guide
55
365-095-25397-x.1
Firewall Screens
You can configure firewall filters and alert notifications for your home network. The SBG6580 firewall
protects the SBG6580 LAN from unwanted attacks and other intrusions on the Internet. Firewall
protection also provides the following benefits:
•
Advanced, integrated stateful-inspection firewall supporting intrusion detection, session tracking,
and denial-of-service attack prevention.
•
Maintains state data for every TCP/IP session on the OSI network and transport layers.
•
Monitors all incoming and outgoing packets, applies the firewall policy to each one, and screens for
improper packets and intrusion attempts.
•
Generates comprehensive notifications for the following:
ο
User authentications
ο
Rejected internal and external connection requests
ο
Session creation and termination
ο
Outside attacks (intrusion detection)
Protection Level
The Firewall Protection Level screen has various settings related to blocking or exclusively allowing
different types of data through the SBG6580 from the WAN to the LAN. There are three security firewall
protection levels which correspond to how many services are allowed:
•
High
- Safest configuration, highest security
•
Medium
- Common configuration, modest risk
•
Low
- Minimum security, higher risk
•
Off
- No security, highest risk
Firewall protection enables the Stateful Packet Inspection (SPI) firewall features. Block Fragmented IP
packets prevent all fragmented IP packets from passing through the firewall. Port Scan Detection
detects and blocks port scan activity originating on both the LAN and WAN. IP Flood Detection detects
and blocks packet floods originating on both the LAN and WAN.
You can block Java Applets, Cookies, ActiveX controls, pop up windows, and Proxies.
Figure 52 – Firewall Protection Level Screen
Page 67 / 74
Gateway Configuration Screen Definitions
SURFboard® SBG6580 Wireless Cable Modem Gateway
•
User Guide
56
365-095-25397-x.1
Table 18: Firewall Protection Level-Field Descriptions
Field
Description
Firewall Protection
Level
•
Select
Low
,
Medium
, or
High
to set the level of firewall
protection that you want for your gateway.
•
Select
Off
to disable firewall protection.
Note
: If you choose to disable firewall protection, your
computer(s) and other Ethernet-enabled devices on your
home network will be at risk for possible attacks from viruses
and hackers.
Firewall Settings
•
Checkmark to enable each filter that you want to set for
the firewall.
•
Click
Apply
, when done.
Allowed Services
Listing of the websites you selected to allow access to
from your home network.
Parental Control
You can use the Parental Control screen to set up user access restrictions on a specific device connected
to your SBG6580 network. You can set up the following Parental Controls:
•
Allow or block access to specific Internet sites.
•
Allow or block access to specific MAC addresses.
•
Allow or block Internet access based on specific day and time settings.
•
Enable or disable Internet session duration timers to limit the amount of time for Internet access.
Note
: When creating Parental Control access filters, remember to assign the Start and End ports. Otherwise,
any filters without assigned ports will apply to all ports. This also applies to MAC addresses.
Figure 53 – Firewall Parental Control-Set Time Zone Screen
Page 68 / 74
Gateway Configuration Screen Definitions
SURFboard® SBG6580 Wireless Cable Modem Gateway
•
User Guide
57
365-095-25397-x.1
Table 19: Firewall Parental Control-Set Time Zone-Field Descriptions
Field
Description
Current Time
Enter the current time.
Current Time Zone
Select your time zone.
Automatically Adjust for
Daylight Saving Time
Select
Yes
or
No
if you want the time to change for
Daylight Saving Time.
Figure 54 – Firewall Parental Control Screen
Table 20: Firewall Parental Control-Field Descriptions
Field
Description
Description
Enter a name to create a new user profile.
MAC Address
Enter the 12-digit (hexadecimal) hardware address of the
device that you are setting up for parental controls.
The MAC addressed is assigned by the hardware
manufacturer and should be located on the device label.
Page 69 / 74
Gateway Configuration Screen Definitions
SURFboard® SBG6580 Wireless Cable Modem Gateway
•
User Guide
58
365-095-25397-x.1
Field
Description
URL
Enter the web address of the Internet site that you want to
block or access.
Start Port
Enter the starting port number of the range of ports for which
you want to block incoming or outgoing access.
Default port is
0
.
End Port
Enter the ending port number of the range of ports for which
you want to block incoming or outgoing access.
Default port is
0
.
Protocol
Select
TCP
,
UDP
, or
Both
for the Internet protocol.
Days
Select the days of the week that the selected user can access
the Internet.
Time
Set the start and end time of day that the selected user can
access the Internet.
Allow/Block
Set to allow or block Internet access for the time defined
above.
Enabled
Turn ON or OFF this Parental Control restriction.
Time Zone
Update the related time information for your location.
Local Log
You can use either of the following two formats to send your firewall event log notifications:
•
Individual e-mail alerts sent out automatically each time the firewall is under attack
•
Local log stored within the gateway and displayed in table form on the Local Log page
Figure 55 – Firewall Local Log Screen
Page 70 / 74
Gateway Configuration Screen Definitions
SURFboard® SBG6580 Wireless Cable Modem Gateway
•
User Guide
59
365-095-25397-x.1
Table 21: Firewall Local Log-Field Descriptions
Field
Description
Contact Email Address
Your email address
SMTP Server Name
Name of the email Simple Mail Transfer Protocol
(SMTP) server
The firewall page requires the name of your email
server for sending a firewall log to your email address.
You can obtain the SMTP server name from your
service provider.
SMTP Username
Your user name for your email account. Check with
your email service provider.
SMTP Password
Your user password for your email account. Check with
your email service provider.
Email Alerts
Enable or disable emailing firewall alerts.
Remote Log
You can send firewall attack reports out to a standard SysLog server, so that many instances can be
logged over a long period of time. You can select individual attack or configuration items to send to the
SysLog server so that only the items of interest will be monitored.
There are four types of Firewall reports that you can monitor and log:
•
Permitted Connections
– Select to notify the server to send you email logs identifying who is
connecting to your network.
•
Blocked Connections
– Select to notify the server to send you email logs identifying who was
blocked from connecting to your network.
•
Known Internet Attacks
– Select to notify the server to send you email logs of known Internet
attacks against your network.
•
Product Configuration Events
– Select to notify the server to send you email logs of the basic
product configuration events logs.
The SysLog server must be on the same network as the Private LAN behind the Configuration Manager
(typically 192.168.0.x).
To activate the SysLog monitoring feature, check all desired event types to monitor and enter the last
byte of the IP address of the SysLog server. Normally, the IP address of this SysLog server is hard coded
so that the address always agrees with the entry on this page.

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