Chapter 5: Configuring the CopperJet

Click on the

Option name

drop-down list and select a name. Type a value that matches the

lected option name in the

Option value

text box. Click on

OK

.

delete an existing

ption, check the

Delete?

box for a specific option and click

OK

.

he

ting a fixed host

To create a fixed host click on

Create new Fixed Host…

. The

Create new DHCP server fixed

layed.

se

The

Edit DHCP server subnet

page is displayed, and details of your new option are

displayed under the sub-heading

Additional option information

. To

o

Go to the

Configuration

menu and click on

Save config

to save the new settings into t

CopperJet.

5.11.2 Crea

host IP/MAC mapping

page is disp

Complete the following:

Type in the IP address that will be given to the host with the specified MAC address.

Type in the MAC address and the maximum lease time (default is 86400 seconds).

Click on

OK

. The

DHCP Server

page is displayed, and details of your new fixed host are

d

mapping, click on the IP address, MAC address or max lease time, type a new entry and

G

C

1

2

3

displayed under the sub-heading

Existing DHCP fixed IP/MAC mappings

. To edit a fixe

click

Apply

. To delete a fixed mapping, check the

Delete?

Box for a specific mapping and

click

Apply

.

o to the

Configuration

menu and click on

Save config

to save the new settings into the

opperJet.

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Chapter 5: Configuring the CopperJet

5.11.3 Disabling DHCP Server

To disable the DHCP Server, go to the

Configuration

menu and select

DHCP serve

r. The

DHCP Server

page is displayed.

Click on the

Disable

button.

The DHCP Server is now disabled.

Go to the

Configuration

menu and click on

Save config

to save the new settings into

the CopperJet.

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Chapter 5: Configuring the CopperJet

5.12 Configuring DHCP Relay

DHCP Relay provides a means for relaying DHCP and BOOTP requests from a subnet to

which no DHCP server is directly connected to one or more DHCP servers on other

subnets. The DHCP Relay Agent listens for DHCP and BOOTP queries and responses. When

a query is received from a client, DHCP Relay forwards it to the list of DHCP servers

specified. When a reply is received from a server, it is broadcast or unicast (according to

the client's request) on the network from which the original request came.

From the

Configuration

menu, click on

DHCP relay

. The

DHCP Relay

page is displayed:

5.12.1 Enabling/disabling DHCP relay

Click on the

Enable/Disable

button at the top of the page. If you click on the

Disable

button, DHCP server is disabled and the button changes to

Enable

.

Note: The Enable/Disable button is only visible when the DHCP Server of the CopperJet

is disabled. DHCP Relay only works when the DHCP Server is disabled.

5.12.2 Configuring DHCP relay on specific interfaces

You can configure DHCP relay to run on one or more specific interfaces. By default, once

enabled, DHCP relay operates on all available IP interfaces. You may set DHCP relay to run

on one of your LAN interfaces and the WAN interface, so that it can listen for replies from a

DHCP server at your ISP. This allows you to set DHCP server to run on a different interface

at the same time.

To specify an interface for DHCP relay to run on:

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Chapter 5: Configuring the CopperJet

1. Click on the

New IP interface

drop-down list and select an interface.

2. Click

Add

.

5.12.3 Adding a DHCP server to the DHCP relay list

1

In the

Add new DHCP server

section, type an address in the

New DHCP server IP

address

text box.

2

Click

Apply

. The address is displayed in the

Edit DHCP server list

section.

5.12.4 Editing/deleting entries in the DHCP relay list

1

To edit an entry, click on an IP address and type a new entry, then click

Apply

.

2

.To delete an entry, check the

Delete?

box for a specific IP address, then click

Apply

.

5.13 Configuring DNS client

The DNS client enable the CopperJet to resolve IP addresses from external DNS Servers.

To manually configure DNS client, go to the

Configuration

menu and select

DNS client

.

The

DNS client

page is displayed:

5.13.1

Configuring DNS servers

1

Type the IP address of the unknown domain name in the

DNS servers:

text box.

Click

Add

. The IP address appears in the DNS servers table. You can add a maximum of

5.13.2 Configuring DNS search domains

1

Type a search string in the

Domain search order:

text box.

Click

Add

. The search string is displayed in the

Domain search order

table. You can add a

5.14 Configuring DNS Relay

DNS Relay allows you to send DNS requests to the CopperJet instead of the DNS servers at

2

three server IP addresses. Each IP address entry has a

Delete

button associated with it.

Click on

Delete

to remove an IP address from this list.

2

maximum of six search strings. Each search string entry has a

Delete

button associated

with it. Click on

Delete

to remove a string from this list.

the service provider. The CopperJet relays these requests to specified DNS Servers.

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Chapter 5: Configuring the CopperJet

The DNS servers can be discovered automatically through DHCP on the WAN interface

OR

configured manually.

5.14.1 Configuring DNS Relay manually

To manually configure DNS Relay, go to the

Configuration

menu and select

DNS rela

y. The

DNS Relay

page is displayed:

Fill in the required DNS address and click on

Apply

. You will now see that the DNS address

is added. To delete the DNS address mark the box

Delete?

and click on

Apply

. Click

Reset

to undo your selection.

When finished configuring DNS Relay, go to the

Configuration

menu and click on

Save

config

to save the new settings into the CopperJet.

Note: You need to fill in the CopperJet IP address as DNS server on your network card or

configure the DHCP Server and enable the setting: Use Router as DNS Server.

5.14.2 Automatically discover DNS Relay addresses

For configuring the automatic discovery of DNS addresses, a WAN Connection need to be

configured. See section

5.6 WAN Connections

for configuring WAN connections.

For both PPPoA and PPPoE connections, the CopperJet can discover the DNS addresses

automatically. The service provider will provide the DNS addresses through DHCP. In this

situation, there is no need to configure DNS Relay manually. Go to the

Configuration

menu

and select

WAN Connections

. The WAN connections that are defined are displayed. Edit the

preferred WAN connection by selecting

Edit

. The

WAN connection

page is displayed.

For PPPoA, select the

PPP

tab. For PPPoE, select the

PPPoE

tab.

Be sure that following options are set to

true

if you want the CopperJet to automatically

discover the DNS addresses.

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