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Billion BiPAC 7402NX(L) 802.11n 3G/ADSL2+ (VPN) Firewall Router
Chapter 4: Configuration
92
MSN (7001)
UDP(17)
7001
7001
YES
YES
N/A
N/A
N/A
N/A
MSN
VEDIO
(9000)
TCP(6)
9000
9000
NO
YES
N/A
N/A
N/A
N/A
Inbound:
Internet to LAN ;
Outbound:
LAN to Internet.
YES:
Allowed ;
NO:
Blocked ;
N/A:
Not Applicable
Packet Filter – Add TCP/UDP Filter
Rule Name:
Users-define description to identify this entry or click “
Select” drop-down menu
to select
existing predefined rules. The maximum name length is 32 characters.
IP version:
select IPv4 or IPv6.
Time Schedule:
It is self-defined time period.
You may specify a time schedule for your prioritization
policy. For setup and detail, refer to
Time Schedule
section
Source IP Address(es) / Destination IP Address(es):
This is the Address-Filter used to allow or block
traffic to/from particular IP address(es). Selecting the
Subnet Mask
of the IP address range you wish to
allow/block the traffic to or form; set IP address and Subnet Mask to
0.0.0.0
to inactive the Address-Filter
rule.
Tip:
To block access, to/from a single IP address, enter that IP address as the
Host IP Address
and use
a
Host Subnet Mask
of “255.255.255.255”.
Source Port:
This Port or Port Ranges defines the port allowed to be used by the Remote/WAN to
connect to the application. Default is set from range
0 ~ 65535.
It is recommended that this option be
configured by an advanced user.
Destination Port:
This is the Port or Port Ranges that defines the application.
Type:
It is the packet protocol type used by the application, select
TCP
,
UDP
or both
TCP/UDP
.
Protocol
Number:
Insert the port number.
Inbound / Outbound:
Select
Allow
or
Block
the access to the Internet (
“Outbound”
) or from the
Internet (
“Inbound”
).
Click
Add
button to apply your changes.
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Billion BiPAC 7402NX(L) 802.11n 3G/ADSL2+ (VPN) Firewall Router
Chapter 4: Configuration
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Packet Filter – Add Raw IP Filter
Go to “Type” drop-down menu, select “Use Protocol Number”.
Rule Name Helper:
Users-define description to identify this entry or choosing “Select” drop-down menu
to select existing predefined rules.
IP version:
select IPv4 or IPv6.
Time Schedule:
It is self-defined time period.
You may specify a time schedule for your prioritization
policy. For setup and detail, refer to
Time Schedule
section
Protocol Number:
Insert the port number, i.e. GRE 47.
Inbound / Outbound:
Select
Allow
or
Block
the access to the Internet (
“Outbound”
) or from the
Internet (
“Inbound”
).
Click
Add
button to apply your changes.
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Billion BiPAC 7402NX(L) 802.11n 3G/ADSL2+ (VPN) Firewall Router
Chapter 4: Configuration
94
Example: Configuring your firewall to allow a publicly accessible web server on your LAN
The predefined port filter rule for HTTP (TCP port 80) is the same no matter whether the firewall is set to a
high, medium or low security level. To setup a web server located on the local network when the firewall is
enabled, you have to configure the Port Filters setting for HTTP.
As you can see from the diagram below, when the firewall is enabled with one of the three presets
(Low/Medium/High), inbound HTTP access is not allowed which means remote access through HTTP to
your router is not allowed.
Note:
Inbound indicates accessing from Internet to LAN and Outbound is from LAN to the Internet.
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Billion BiPAC 7402NX(L) 802.11n 3G/ADSL2+ (VPN) Firewall Router
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Configuring Packet Filter:
1.
Click
Packet Filters
. You will then be presented with the predefined port filter rules screen (in this
case for the low security level), shown below:
Note:
You may click Edit the predefined rule instead of Delete it.
This is an example to show to how you add a
filter on your own.
2.
Choose the radio button you want to delete the existing HTTP rule.
Click
Edit/Delete
button to
delete the existing HTTP rule.
3.
Input the Rule Name, Time Schedule, Source/Destination IP, Type, Source/Destination Port,
Inbound and Outbound.
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Billion BiPAC 7402NX(L) 802.11n 3G/ADSL2+ (VPN) Firewall Router
Chapter 4: Configuration
96
Example
:
Application:
Cindy_HTTP
Time Schedule:
Always On
Source / Destination IP Address(es):
0.0.0.0
(I do not wish to active the address-filter, instead I use
the port-filter)
Type:
TCP (Please refer to Table1: Predefined Port Filter)
Source Port:
0-65535
(I allow all ports to connect with the application))
Redirect Port:
80-80
(This is Port defined for HTTP)
Inbound / Outbound:
Allow
4.
The new port filter rule for HTTP is shown below:
5.
Configure your Virtual Server (“port forwarding”) settings so that incoming HTTP requests on port 80
will be forwarded to the PC running your web server:
Note:
For how to configure the HTTP in Virtual Server, go to Add Virtual Server in Virtual Server section for more
details.

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