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Page 46 / 77 Scroll up to view Page 41 - 45
42
Firewall
Linksys
Restrict Web Features
It supports the block that is connected through: Java, Cookies, Active X, and
HTTP Proxy access.
Don’t Block Java / ActiveX
/ Cookies Proxy to Trusted
Domain
When enabled, users can add trusted network
or IP address into the trust domain.
Access Rules
You can use access rules to manage network packet traffic and determine
whether the access is allowed by the firewall. Please use Configuration >
Firewall > Access Rules to edit or add new rules.
NOTE:
Remember to click
Save
to save your settings before leaving the page. You
can also click
Cancel
to undo the changes.
Default access rules are as below:
•
All traffic from the LAN to the WAN is allowed.
•
All traffic from the WAN to the LAN is denied.
•
All traffic from the DMZ to the LAN is denied.
NOTE:
Be sure not to disable all firewall protection or block all traffic to the Internet.
The following four extra rules are always on and are not affected by other user-
defined settings.
•
HTTP service from LAN to device is allowed.
•
DHCP service from the LAN is allowed.
•
DNS service from the LAN is allowed.
•
Ping service from the LAN to the device is allowed.
Managing the access rules
Except for the default rules, you can set the priority for each rule.
Click the
IPv4
tab to set rules for traffic with IPv4 addressing.
Or click the
IPv6
tab to set rules for traffic with IPv6 addressing.
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43
Firewall
Linksys
You can use the Rows per page list at the top right corner of the table to decide
the number of rules to display on each page, and use the Page list to choose a
particular page.
Priority
Indicates the priority of the access rule; 1 being
the highest. Select an option from the drop-down
list to change the priority. The default access rules
have the lowest priority.
Enable
A new rule will be automatically assigned with a
priority. You can change the priority by editing.
To add a new rule
Check the Enable box to enable or uncheck to
disable. The default rules are not allowed to
change.
To edit a custom rule
Click Edit.
To delete an existing
rule
Click Delete and click OK to continue, or click
Cancel to close the message without deleting the
rule.
Return
to
Default
Rules
Click Restore to Default Rules to delete all the self-
defined settings.
Adding or Editing access rules
Click
Add
or Edit to enter Access Rules configuring page.
NOTE:
Remember to click
Save
to save your settings before leaving the page. You
can also click
Cancel
to leave without any change.
Services (Both IPv4 and IPv6)
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44
Firewall
Linksys
Action:
Allow:
Permits the pass of packets compliant with this
control rule.
Deny:
Prevents the pass of packets not compliant with
this control rule.
Service:
Choose the service for this rule. You can also click Service
Management to add new services.
Log:
Not Log:
There will be no log record.
Log packets match this rule:
Events will be recorded in
the log.
Source Interface:
Choose the source interface that is affected by this rule.
Source IP:
Identify the traffic source that is affected by this rule.
Choose one of the following options from drop-down list:
•
ANY:
This rule applies to any IP address.
•
Single:
This rule applies to a single IP address. Enter
the IP address in the following box.
•
Range:
This rule applies to a range of IP addresses
(IPv4 only). Enter the first IP address in the first box,
and then enter the final IP address in the second box.
•
Subnet:
This rule applies to a subnetwork (IPv6 only).
Enter the IP address and the prefix length.
Dest. IP:
Identify the traffic destination that is affected by this rule.
Choose one of the following options from drop-down list:
•
ANY:
This rule applies to any IP address.
•
Single:
This rule applies to a single IP address. Enter
the IP address in the following box.
•
Range:
This rule applies to a range of IP addresses
(IPv4 only). Enter the first IP address in the first box,
and then enter the final IP address in the second box.
•
Subnet:
This rule applies to a subnet (IPv6 only).
Enter the IP address and the prefix length.
Scheduling (IPv4 Only)
Define a schedule when this rule is active:
•
Time:
o
Always:
Choose this option if the rule applies at all times.
o
Interval:
Choose this option to specify the time period when the rule is
active. If you choose this option, you must enter a time period in the From
and To fields. Optionally, you can specify the days of the week.
•
From and To:
To specify active times and days. Enter the start time in the
From
field and enter end time in the
To
field. Use hh:mm format, such as
15:30 for 3:30 pm. Enter 00:00 to 00:00 if the rule applies during all times
of day.
•
Effective on:
If you chose Interval, you can use check boxes to specify
the active days of the rule. Check the Everyday box if the rule is active on
all days. To choose specific days, uncheck the
Everyday
box and then
check the box for each day when the rule is active.
Adding a service
To add a new service item or to edit an existing service, click Service
Management. In the Service Management window, add or edit entries as
needed. After setting a rule, be sure to click OK to save your settings or click
Cancel to undo them.
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45
Firewall
Linksys
To add a service to the list,
enter the following information, and then click
Add to List
. You can have up to 30 services on the list.
Service Name:
Give a name to the service.
Protocol:
Choose the required protocol: TCP, UDP or Ipv6.
Port Range:
Enter the port range.
Add another new service:
Enter the information, and then click
Add to list
.
Edit a service you created:
Select the service on the list and click
Update
to make the changes. If you do not need to make changes, clicking
Add New
deselects the service and clears the text fields.
Delete a service from the list:
Click
Delete.
Content Filter
The device supports two Web page restriction modes: one blocks certain
forbidden domains; the other gives access to certain Web pages. Only one of
these two modes can be selected.
NOTE:
Remember to click Save before leaving the page. You can also click Cancel to
undo the changes.
Forbidden Domains
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46
Firewall
Linksys
Fill in the complete website such as to have it blocked.
Add:
Enter the websites to be controlled, such as www.gamble.com.
Add to list:
Click ”Add to list” to create a new website to be controlled.
Delete:
Click to select one or more controlled websites and delete.
Add New:
Click the button to add a new domain when pre-defined
domain is selected.
Website Blocking by Keywords
Add:
Enter keywords. (English only)
If users enter the string ”casino,” any websites containing
”casino” will be blocked.
Add to List:
Add this new service item content to the list.
Delete:
Delete the service item content from the list.
Add New:
Click the button to add a new keyword when pre-defined
keyword is selected.
Scheduling
Always:
“
Always
” applies the rule on a round-the-clock basis.
“
Interval
” will apply the rule according to the defined time.
From…To…:
When
“Interval”
is selected, the control rule has time
limitations. The setting method is in 24-hour format, such as
08:00 - 18:00 (8 a.m. to 6 p.m.)
Effective on:
Click “
Everyday
” or choose the day that you would like the
scheduling rule to be effective.

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