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±
Custom Port Forwarding
: If there is no pre-defined Port Forwarding Rule for a particular
application, a user rule can be created which defines the required Ports, Protocols and Port
forwarding rules. Click the Custom Port Forwarding button and the following screen will pop-up.
To create a custom rule you will need to know the specific port number and port type that the
application requires. Some applications specify a range of ports in which case you will need to
know both the starting and ending port numbers in the range, which are mapped by the start port
and end port fields.
The Port Map specifies the internal port that the data will be directed to on the LAN Client. When
dealing with port ranges, the Internal Port will be the same as the first port in the range. When you
simply want to forward a single port from outside to inside, then all three fields (Port Start, Port End
and Port Map) will have the same port number.
±
Available pre-defined rules are categorized according to the application type. Click the radio button
adjacent to the appropriate
Category
, and then select the required application name. Click on the
Add
button to move the application into the
Applied Rules
box. To remove a rule from the Applied
Rules box, select the rule and click on the
Remove
button. To complete and save the setting, click
Save All
after clicking the
Apply
button.
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71
4.4.6 ADVANCED - IP Filters
The
IP Filters
page allows you to specify normal Port Forwards, Block traffic to specific LAN Clients or
specify Custom IP Filters that will control the flow of data across the router.
±
Select LAN Group
: Select LAN Group from the drop down manual.
±
LAN IP
: Enter the router’s LAN IP Address.
±
Block All Traffic:
Click to enable blocking all traffic to specific LAN Clients.
±
Block Outgoing Ping:
Click to enable blocking all outgoing ping from LAN clients.
±
NEW IP:
Click
NEW IP
if you wish to manually add a LAN client so that you can apply rules to it.
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72
±
Custom IP Filters
: Custom IP Filters allow you to specify individual rules that will deny traffic by
defining the following:
;
Source IP address or Source IP Subnet Mask.
;
Destination IP address or Destination IP Subnet Mask.
;
Port or Port range.
;
Protocol.
Customer IP filter are different from Port forwards, or Block All traffic because they allow greater
scopes of IP addresses to be included in the block.
±
Apply:
Click
Apply
to complete the setting.
±
Cancel:
Click
Cancel
to ignore all the changes.
±
To complete and save the setting, click
Save All
after clicking the
Apply
button.
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73
4.4.7 ADVANCED - LAN Clients
LAN Client
names are a way of applying specific Port-forwarding, Access Control and QoS rules to individual
computers on the LAN. If DHCP is used, all DHCP clients are automatically assigned and are designated as
a LAN client.
Enter the IP Address, Hostname and MAC Address as shown. Click Apply to activate your setting.
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74
4.4.8 ADVANCED - LAN Isolation
LAN Isolation
provide blocking traffic from one LAN to another LAN. Place a check at the selected rules and
click Apply to activate your setting.

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