Vigor2900 Series User’s Guide

25

2

nd

DHCP Server

You can configure the router to serve as a DHCP server for the 2nd

subnet.

Start IP Address:

Enter a value of the IP address pool for the DHCP

server to start with when issuing IP addresses. If the 2nd IP address

of your router is 220.135.240.1, the starting IP address must be

220.135.240.2 or greater, but smaller than 220.135.240.254.

IP Pool Counts:

Enter the number of IP addresses in the pool. The

maximum is 10. For example, if you type 3 and the 2nd IP address of

your router is 220.135.240.1, the range of IP address by the DHCP

server will be from 220.135.240.2 to 220.135.240.4.

MAC Address:

Enter the MAC Address of the host one by one and

click

Add

to create a list of hosts to be assigned, deleted or edited IP

address from above pool. Set a list of MAC Address for 2

nd

DHCP

server will help router to assign the correct IP address of the correct

subnet to the correct host. So those hosts in 2

nd

subnet won’t get an

IP address belonging to 1

st

subnet.

RIP Protocol Control

Disable

deactivates the RIP protocol. It will lead to a stoppage of the

exchange of routing information between routers. (Default)

1st Subnet -

Select the router to change the RIP information of the

1st subnet with neighboring routers.

2nd Subnet -

Select the router to change the RIP information of the

2nd subnet with neighboring routers.

DHCP Server

Configuration

DHCP stands for Dynamic Host Configuration Protocol. The

router by factory default acts a DHCP server for your network so it

automatically dispatch related IP settings to any local user

configured as a DHCP client. It is highly recommended that you

leave the router enabled as a DHCP server if you do not have a

Vigor2900 Series User’s Guide

26

DHCP server for your network.

If you want to use another DHCP server in the network other than

the Vigor Router’s, you can let Relay Agent help you to redirect the

DHCP request to the specified location.

Enable Server -

Let the router assign IP address to every host in the

LAN.

Disable Server –

Let you manually assign IP address to every host

in the LAN.

Relay Agent – (1

st

subnet/2

nd

subnet)

Specify which subnet that

DHCP server is located the relay agent should redirect the DHCP

request to.

Start IP Address -

Enter a value of the IP address pool for the

DHCP server to start with when issuing IP addresses. If the 1st IP

address of your router is 192.168.1.1, the starting IP address must be

192.168.1.2 or greater, but smaller than 192.168.1.254.

IP Pool Counts -

Enter the maximum number of PCs that you want

the DHCP server to assign IP addresses to. The default is 50 and the

maximum is 253.

Gateway IP Address -

Enter a value of the gateway IP address for

the DHCP server. The value is usually as same as the 1st IP address

of the router, which means the router is the default gateway.

DHCP Server IP Address for Relay Agent -

Set the IP address of

the DHCP server you are going to use so the Relay Agent can help to

forward the DHCP request to the DHCP server.

DNS Server

Configuration

DNS stands for Domain Name System. Every Internet host must

have a unique IP address, also they may have a human-friendly,

easy to remember name such as www.yahoo.com. The DNS server

converts the user-friendly name into its equivalent IP address

.

Primary IP Address -

You must specify a DNS server IP address

here because your ISP should provide you with usually more than

one DNS Server. If your ISP does not provide it, the router will

automatically apply default DNS Server IP address: 194.109.6.66 to

this field.

Secondary IP Address -

You can specify secondary DNS server IP

address here because your ISP often provides you more than one

DNS Server. If your ISP does not provide it, the router will

automatically apply default secondary DNS Server IP address:

194.98.0.1 to this field.

The default DNS Server IP address can be found via Online Status:

If both the Primary IP and Secondary IP Address fields are left empty,

the router will assign its own IP address to local users as a DNS

proxy server and maintain a DNS cache.

If the IP address of a domain name is already in the DNS cache, the

router will resolve the domain name immediately. Otherwise, the

router forwards the DNS query packet to the external DNS server by

establishing a WAN (e.g. DSL/Cable) connection.

There are two common scenarios of LAN settings that stated in Chapter 4. For the

configuration examples, please refer to that chapter to get more information for your necessity.

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27

2.4 ISDN Setup

ISDN stands for Integrated Services Digital Network. It is an international communications

standard for sending voice, video, and data over digital telephone lines or normal telephone

wires.

Note: The following is available for

Vigor2900VGi/Vi

only.

ISDN Port

Click

Enable

to open the ISDN port and

Disable

to close

it.

Country Code

For proper operation on your local ISDN network, you

should choose the correct country code.

Own Number

Enter your ISDN number. Every outgoing call will carry

the number to the receiver.

MSN Numbers for the Router

MSN Numbers

mean that the router is able to accept only

number-matched incoming calls. In addition, MSN

services should be supported by local ISDN network

provider. The router provides three fields for MSN

numbers. Note that MSN services must be acquired from

your local telecommunication operators. By default, MSN

function is disabled. If you leave the fields blank, all

incoming calls will be accepted without number matching.

Blocked MSN Numbers for the

router

Enter the specified MSN number into the fields to

prevent the router from dialing the specific MSN

number.

For example, DrayTek provides the

Remote Activation

(refer to section 3.2) feature for the

teleworkers who wish to dial in the head office over the ISDN. With this feature, teleworkers

can make a phone call to the router at the head office and ask the router to dial up the ISP. As

a result, the teleworkers can be authorized with their office accounts to utilize ISDN dial-up

services and both sides can thus engage in secure communication over the LAN-to-LAN

ISDN.

The ISDN interface of Vigor2900VGi and Vigor2900Vi routers supports the

VTA

(

Virtual

Terminal Adapter,

please refer to section 2.8) feature. VTA is actually a “CAPI” software,

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28

which can simulate a real ISDN terminal adapter installed on your computer. You can install

the CAPI-compliant software for dial-up networking, fax or voice applications depending on

the functionality of the CAPI software you installed. To employ the VTA feature, please

download the VTA drivers (available only to Windows 98SE/2000/XP) from

http://www.draytek.com/english/support/download.php.

2.5 Wireless LAN Setup

Note: The following is available for

G

models only.

2.5.1 Basic Concepts

Over recent years, the market for wireless communications has enjoyed tremendous growth.

Wireless technology now reaches or is capable of reaching virtually every location on the

surface of the earth. Hundreds of millions of people exchange information every day via

wireless communication products. The Vigor G model, a.k.a. Vigor wireless router, is

designed for maximum flexibility and efficiency of a small office/home. Any authorized staff

can bring a built-in WLAN client PDA or notebook into a meeting room for conference

without laying a clot of LAN cable or drilling holes everywhere. Wireless LAN enables high

mobility so WLAN users can simultaneously access all LAN facilities just like on a wired

LAN as well as Internet access.

The Vigor wireless routers are equipped with a wireless LAN interface compliant with the

standard IEEE 802.11g protocol. To boost its performance further, the Vigor Router is also

loaded with advanced wireless technology Super G

TM

to lift up data rate up to 108 Mbps*.

Hence, you can finally smoothly enjoy stream music and video.

Note:

*

The actual data throughput will vary according to the network conditions

and environmental factors, including volume of network traffic, network overhead

and building materials.

In an Infrastructure Mode of wireless network, Vigor wireless router plays a role as an Access

Point (AP) connecting to lots of wireless clients or Stations (STA). All the STAs will share the

same Internet connection via Vigor wireless router. The

General Settings

will set up the

information of this wireless network, including its SSID as identification, located channel etc.

Vigor2900 Series User’s Guide

29

Security Overview

Real-time Hardware Encryption:

Vigor Router is equipped with a hardware AES encryption

engine so it can apply the highest protection to your data without influencing user experience.

Complete Security Standard Selection:

To ensure the security and privacy of your wireless

communication, we provide several prevailing standards on market.

WEP (Wired Equivalent Privacy) is a legacy method to encrypt each frame transmitted via

radio using either a 64-bit or128-bit key. Usually access point will preset a set of four keys and

it will communicate with each station using only one out of the four keys.

WPA(Wi-Fi Protected Access), the most dominating security mechanism in industry, is

separated into two categories: WPA-personal or called WPA Pre-Share Key (WPA/PSK), and

WPA-Enterprise or called WPA/802.1x.

In WPA-Personal, a pre-defined key is used for encryption during data transmission. WPA

applies Temporal Key Integrity Protocol (TKIP) for data encryption while WPA2 applies AES.

The WPA-Enterprise combines not only encryption but also authentication.

Since WEP has been proved vulnerable, you may consider using WPA for the most secure

connection. You should select the appropriate security mechanism according to your needs.

No matter which security suite you select, they all will enhance the over-the-air data

protection and /or privacy on your wireless network. The Vigor wireless router is very flexible

and can support multiple secure connections with both WEP and WPA at the same time.

Example 1

Example 2