DrayTek Vigor-2110 Router Manual PDF (Setup & Configuration Guide)

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Vigor2110 Series User’s Guide

94

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

.

Force DNS manual setting -

Force Vigor router to use DNS servers

in this page instead of DNS servers given by the Internet Access

server (PPPoE, PPTP, L2TP or DHCP server).

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.

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Vigor2110 Series User’s Guide

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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.

4.2.3 Static Route

Go to

LAN

to open setting page and choose

Static Route

.

Index

The number (1 to 10) under Index allows you to open next page to

set up static route.

Destination Address

Displays the destination address of the static route.

Status

Displays the status of the static route.

Viewing Routing Table

Displays the routing table for your reference.

Add Static Routes to Private and Public Networks

Here is an example of setting Static Route in Main Router so that user A and B locating in

different subnet can talk to each other via the router. Assuming the Internet access has been

configured and the router works properly:

z

use the Main Router to surf the Internet.

z

create a private subnet 192.168.10.0 using an internal Router A (192.168.1.2)

z

create a public subnet 211.100.88.0 via an internal Router B (192.168.1.3).

z

have set Main Router 192.168.1.1 as the default gateway for the Router A 192.168.1.2.

Before setting Static Route, user A cannot talk to user B for Router A can only forward

recognized packets to its default gateway Main Router.

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Vigor2110 Series User’s Guide

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1.

Go to

LAN

page and click

General Setup

, select 1st Subnet as the

RIP Protocol

Control.

Then click the

OK

button.

Note:

There are two reasons that we have to apply RIP Protocol Control on 1st

Subnet. The first is that the LAN interface can exchange RIP packets with the

neighboring routers via the 1st subnet (192.168.1.0/24). The second is that those

hosts on the internal private subnets (ex. 192.168.10.0/24) can access the Internet via

the router, and continuously exchange of IP routing information with different

subnets.

2.

Click the

LAN - Static Route

and click on the

Index Number 1.

Check the

Enable

box.

Please add a static route as shown below, which regulates all packets destined to

192.168.10.0 will be forwarded to 192.168.1.2. Click

OK

.

3.

Return to

Static Route

Setup

page. Click on another

Index Number

to add another

static route as show below, which regulates all packets destined to 211.100.88.0 will be

forwarded to 192.168.1.3.

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Vigor2110 Series User’s Guide

97

4.

Go to

Diagnostics

and choose

Routing Table

to verify current routing table.

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Vigor2110 Series User’s Guide

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4.2.4 VLAN

Virtual LAN function provides you a very convenient way to manage hosts by grouping them

based on the physical port. You can also manage the in/out rate of each port. Go to

LAN

page

and select

VLAN

. The following page will appear. Click

Enable

to invoke VLAN function.

To add or remove a VLAN, please refer to the following example.

1.

If, VLAN 0 is consisted of hosts linked to P1 and P2 and VLAN 1 is consisted of hosts

linked to P3 and P4.

2.

After checking the box to enable VLAN function, you will check the table according to

the needs as shown below.

To remove VLAN, uncheck the needed box and click

OK

to save the results.

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