Billion BiPAC-7800NL Router Manual PDF (Setup & Configuration Guide)

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Priority:

The priority given to each policy/application. Its default setting is set to Normal. You may

adjust this setting to ﬁt your policy / application.

Internal IP Address:

The private IP in the LAN

network.

External IP Address:

The IP address on the Internet.

Internal Port:

The Port number on the LAN side.

External Port:

The Port number on the Remote/WAN side.

Time Schedule:

A self deﬁned time period. You may specify a time schedule for your QoS policy.

For setup and detail, refer to Time Schedule section.

Note: Make sure that the router(s) in the network backbone are capable to execute and check

the DSCP throughout the QoS network.

Example 1: Optimize Your Home Network with QoS

If you are actively engaged in using P2P and are afraid of slowing down internet access throughput

of other users within your network, you can thus use QoS function to set different priorities for the

different applications that members of your network will be using to avoid bandwidth trafﬁc from

getting overloaded.

Therefore, in order to assign the priority status of each application, we must ﬁrst create a new QoS

rule for each application.

The ﬁgures below show the different settings for assigning a High Priority status to Web Browsing,

assigning limited rate for Email send & receive.

For Web Browsing

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For Mail Sending

For Mail Receiving

133

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134

QoS Rules created

Example 2: Optimize Your Home Network with QoS

If you are only using a speciﬁc PC for the P2P application, you can create a rule that has a low

priority. In this way, P2P application will not congest the data transmission rate when there are other

applications present.

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135

Virtual Server

Virtual Server allows you to direct incoming trafﬁc from WAN side (identiﬁed by Protocol and External

port) to the Internal server with private IP address on the LAN side. The Internal port is required only

if the external port needs to be converted to a different port number used by the server on the LAN

side.

In TCP and UDP networks a port is a 16-bit number used to identify which application program

(usually a server) incoming connections should be delivered to. Some ports have numbers that

are pre-assigned to them by the IANA (the Internet Assigned Numbers Authority), and these are

referred to as “well-known ports”. Servers follow the well-known port assignments so clients can

locate them.

If you wish to run a server on your network that can be accessed from the WAN (i.e. from other

machines on the Internet that are outside your local network), or any application that can accept

incoming connections (e.g. Peer-to-peer/P2P software such as instant messaging applications and

P2P ﬁle-sharing applications) and are using NAT (Network Address Translation), then you need to

conﬁgure your router to forward these incoming connection attempts using speciﬁc ports to the PC

on your network running the application. You also need to use port forwarding if you wish to host an

online game server.

Examples of well-known and registered port numbers are shown below, for further information,

please see IANA’s website at:

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

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)

161

TCP

SNMP

443

TCP & UDP

HTTPS

1503

TCP

T.120

1720

TCP

H.323

4000

TCP

ICQ

7070

UDP

Real Audio

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136

Port Mapping

Application:

Select the service you wish to conﬁgure.

Protocol:

A protocol is automatically applied when an Application is selected from the listbox or you

may select a protocol type which you want. But when

RAW

is selected, you must set the protocol

number to identify the protocol that the application utilzie.

Protocol Number:

when RAW is selected in Protocol ﬁeld, then type the speciﬁc protocol number

(1~254) here.

External Port & Internal Port:

Enter the public port number & range you wish to conﬁgure.

Internal IP Address:

Enter the IP address of a speciﬁc internal server to which requests from the

speciﬁed port is forwarded.

Add:

Click to add a new virtual server rule. Click again and the next ﬁgure appears.

Edit:

Check the Edit radio button to display the parameter of the selected application, then after

changing the parameters click the Edit/Delete button to apply the changes.

Delete:

To remove a port mapping application, check the Remove box of the selected application

then click the Edit/Delete button.

Time Schedule:

A self deﬁned time period. You may specify a time schedule for your port mapping.

For setup and detail, refer to Time Schedule section.

Since NAT acts as a “natural” Internet ﬁrewall, your router protects your network from accessed

by outside users, as all incoming connection attempts point to y

our router unless you speciﬁcally

create Virtual Server entries to forward those ports to a PC on your network. When your router

needs to allow outside users to access internal servers, e.g. a web server, FTP server, Email server

or game server, the router can act as a “virtual server”. You can set up a local server with a speciﬁc

port number for the service to use, e.g. web/HTTP (port 80), FTP (port 21), Telnet (port 23), SMTP

(port 25), or POP3 (port 110). When an incoming access request the router for a speciﬁed port is

received, it is forwarded to the corresponding internal server.

For example, if you set the port number 80 (Web/HTTP) to be mapped to the IP Address 192.168.1.2,

then all incoming HTTP requests from outside users are forwarded to the local server (PC) with the

IP address of 192.168.1.2. If the port is not listed as a predeﬁned application, you need to add it

manually.

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