Billion BiPAC-7404VGO Router Manual PDF (Setup & Configuration Guide)

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VoIP/(802.11g) ADSL2+ (VPN) Firewall Router

Chapter 4: Configuration

135

Edit DMZ Host

The DMZ Host is a local computer exposed to the Internet. When setting a particular internal IP address

as the DMZ Host, all incoming packets will be checked by the Firewall and NAT algorithms then passed to

the DMZ host, when a packet received does not use a port number used by any other Virtual Server

entries.

Cautious:

This Local computer exposing to the Internet may face varies of security risks.

~

Disabled:

As set in default setting, it disables the DMZ function.

~

Enabled:

It activates your DMZ function.

Internal IP Address:

Give a static IP address to the DMZ Host when

Enabled

radio button is checked.

Be aware that this IP will be exposed to the WAN/Internet.

List all existing PCs connecting to the network. You may assign a PC with IP address and

MAC from this list.

Select the

Apply

button to apply your changes.

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Edit One-to-One NAT (Network Address Translation)

One-to-One NAT maps a specific private/local IP address to a global/public IP address.

If you have multiple public/WAN IP addresses from you ISP, you are eligible for One-to-One NAT to utilize

these IP addresses.

NAT Type:

Select desired NAT type. As set in default setting, it disables the One-to-One NAT function.

Global IP Address:

~

Subnet:

The subnet of the public/WAN IP address given by your ISP.

If your ISP has provided

this information, you may insert it here.

Otherwise, use IP Range method.

~

IP Range:

The IP address range of your public/WAN IP addresses. For example, IP:

192.168.1.1, end IP: 192.168.1.10

Select the

Apply

button to apply your changes.

Check

to create a new One-to-One NAT rule:

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Time Schedule:

User-defined time period to enable your virtual server.

You may specify a time

schedule or Always on for the usage of this Virtual Server Entry.

For setup and detail, refer to

Time

Schedule

section

Application

: Users-defined description to identify this entry or click

to select existing

predefined rules.

:

20 predefined rules are available.

Click the Radio button to select the rule; Application,

Protocol and External/Redirect Ports will be filled after the selection.

Protocol

: It is the supported protocol for the virtual server. In addition to specifying the port number to be

used, you will also need to specify the protocol used. The protocol used is determined by the particular

application. Most applications will use TCP or UDP;

Global IP:

Define a public/ WAN IP address for this Application to use.

This Global IP address must

be defined in the

Global IP Address.

External Port:

The Port number on the Remote/WAN side used when accessing the virtual server.

Redirect Port:

The Port number used by the Local server in the LAN network.

Internal IP Address:

The private IP in the LAN network, which will be providing the virtual server

application.

List all existing PCs connecting to the network. You may assign a PC with

IP address and MAC from this list.

Select the

Apply

button to apply your changes.

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Example: List of some well-known and registered port numbers.

The Internet Assigned Numbers Authority (IANA) is the central coordinator for the assignment of unique

parameter values for Internet protocols. Port numbers range from 0 to 65535, but only ports numbers 0 to

1023 are reserved for privileged services and are designated as “well-known ports” (Please refer to Table

5).

The registered ports are numbered from 1024 through 49151. The remaining ports, referred to as

dynamic or private ports, are numbered from 49152 through 65535.

For further information, please see IANA’s website at:

http://www.iana.org/assignments/port-numbers

For help on determining which private port numbers are used by common applications on this list, please

see the FAQs (Frequently Asked Questions) at:

http://www.billion.com

Table 5: Well-known and registered Ports

Port Number

Protocol

Description

20

TCP

FTP Data

21

TCP

FTP Control

22

TCP & UDP

SSH Remote Login Protocol

23

TCP

Telnet

25

TCP

SMTP (Simple Mail Transfer Protocol)

53

TCP & UDP

DNS (Domain Name Server)

69

UDP

TFTP (Trivial File Transfer Protocol)

80

TCP

World Wide Web HTTP

110

TCP

POP3 (Post Office Protocol Version 3)

119

TCP

NEWS (Network News Transfer Protocol)

123

UDP

NTP (Network Time Protocol) / SNTP (Simple Network Time

Protocol)

161

TCP

SNMP

443

TCP & UDP

HTTPS

1503

TCP

T.120

1720

TCP

H.323

4000

TCP

ICQ

7070

UDP

RealAudio

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Time Schedule

The Time Schedule supports up to 16 time slots which helps you to manage your Internet connection.

In

each time profile, you may schedule specific day(s) i.e. Monday through Sunday to restrict or allowing the

usage of the Internet by users or applications.

This Time Schedule correlates closely with router’s time, since router does not have a real time clock on

board; it uses the Simple Network Time Protocol (SNTP) to get the current time from an SNTP server

from the Internet. Refer to

Time Zone

for details.

You router time should correspond with your local time.

If the time is not set correctly, your Time Schedule will not function properly.

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