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Figure 4-30

DHCP Settings

¾

DHCP Server - Enable

or

Disable

the DHCP server. If you disable the Server, you must

have another DHCP server within your network or else you must configure the computer

manually.

¾

Start IP Address -

Specify an IP address for the DHCP Server to start with when

assigning IP addresses. 192.168.0.100 is the default start address.

¾

End IP Address -

Specify an IP address for the DHCP Server to end with when assigning

IP addresses. 192.168.0.199 is the default end address.

¾

Address Lease Time -

The

Address Lease Time

is the amount of time a network user

will be allowed connection to the Router with their current dynamic IP Address. Enter the

amount of time in minutes and the user will be "leased" this dynamic IP Address. After the

time is up, the user will be automatically assigned a new dynamic IP address. The range

of the time is 1 ~ 2880 minutes. The default value is 120 minutes.

¾

Default Gateway -

(Optional.) Suggest to input the IP address of the LAN port of the

Router, default value is 192.168.0.1

¾

Default Domain -

(Optional.) Input the domain name of your network.

¾

Primary DNS -

(Optional.) Input the DNS IP address provided by your ISP. Or consult

your ISP.

¾

Secondary DNS -

(Optional.) Input the IP address of another DNS server if your ISP

provides two DNS servers.

)

Note:

Only when the DHCP Server function of the Router is enabled, can all computers on the LAN

configured to be "Obtain an IP Address automatically" mode work properly.

4.7.2

DHCP Clients List

Choose menu “

DHCP

→

DHCP Clients List

”, you can view the information about the clients

attached to the Router in the next screen (shown in Figure 4-31

)

.

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3G/4G Wireless N Router User Guide

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Figure 4-31

DHCP Clients List

¾

ID -

The index of the DHCP Client

¾

Client Name

-

The name of the DHCP client

¾

MAC Address

-

The MAC address of the DHCP client

¾

Assigned IP

-

The IP address that the Router has allocated to the DHCP client.

¾

Lease Time

-

The time of the DHCP client leased. After the dynamic IP address has

expired, a new dynamic IP address will be automatically assigned to the user.

You cannot change any of the values on this page. To update this page and to show the

current attached devices, click the

Refresh

button.

4.7.3

Address Reservation

Choose menu “

DHCP

→

Address Reservation

”, you can view and add a reserved addresses

for clients via the next screen (shown in Figure 4-32).When you specify a reserved IP address

for a PC on the LAN, that PC will always receive the same IP address each time when it

accesses the DHCP server. Reserved IP addresses should be assigned to the servers that

require permanent IP settings.

Figure 4-32

Address Reservation

¾

MAC Address -

The MAC address of the PC for which you want to reserve IP address.

¾

Reserved IP Address -

The IP address of the Router reserved.

¾

Status

-

The status of this entry either

Enabled

or

Disabled

.

Click the

Enable All/ Disable All

button to make all entries enabled/disabled

Click the

Delete All

button to delete all entries

Click the

Next

button to go to the next page and Click the

Previous

button to return the

previous page.

To Reserve IP addresses:

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1.

Click the

Add New …

button. (Pop-up Figure 4-33)

2.

Enter the MAC address (in XX-XX-XX-XX-XX-XX format.) and IP address in

dotted-decimal notation of the computer you wish to add.

3.

Click the

Save

button when finished.

Figure 4-33

Add or Modify an Address Reservation Entry

To modify or delete an existing entry:

1.

Click the

Modify

in the entry you want to modify. If you want to delete the entry, click the

Delete

.

2.

Modify the information.

3.

Click the

Save

button.

4.8 Forwarding

Figure 4-34 The Forwarding menu

There are four submenus under the Forwarding menu (shown in Figure 4-34):

Virtual Servers

,

Port Triggering

,

DMZ

and

UPnP

. Click any of them, and you will be able to configure the

corresponding function.

4.8.1

Virtual Servers

Choose menu “

Forwarding

→

Virtual Servers

”, you can view and add virtual servers in the

next screen (shown in Figure 4-35). Virtual servers can be used for setting up public services

on your LAN, such as DNS, Email and FTP. A virtual server is defined as a service port, and all

requests from the Internet to this service port will be redirected to the computer specified by

the server IP. Any PC that was used for a virtual server must have a static or reserved IP

Address because its IP Address may be changed when using the DHCP function.

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Figure 4-35

Virtual Servers

¾

Service Port -

The numbers of External Ports. You can type a service port or a range of

service ports (in XXX – YYY format, XXX is the start port number, YYY is the end port

number).

¾

Internal Port

-

The Internal Service Port number of the PC running the service

application.

¾

IP Address -

The IP Address of the PC providing the service application.

¾

Protocol -

The protocol used for this application, either

TCP

,

UDP

, or

All

(all protocols

supported by the Router).

¾

Status -

The status of this entry either

Enabled

or

Disabled

.

To setup a virtual server entry:

1.

Click the

Add New…

button. (pop-up Figure 4-36)

2.

Select the service you want to use from the Common Service Port list. If the

Common

Service Port

list does not have the service that you want to use, type the number of the

service port or service port range in the

Service Port

box.

3.

Leave the

Internal Port

blank if it is the same as the

Service Port

, or enter a specific port

number when

Service Port

is a single one.

4.

Enter the IP Address of the computer in the

IP Address

box.

5.

Select the protocol used for this application, either

TCP

or

UDP

, or

All

.

6.

Select the

Enable

check box to enable the virtual server.

7.

Click the

Save

button.

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Figure 4-36

Add or Modify a Virtual Server Entry

)

Note

:

If your computer or server has more than one type of available service, please select another

service, and enter the same IP Address for that computer or server.

To modify or delete an existing entry:

1.

Click the

Modify

in the entry you want to modify. If you want to delete the entry, click the

Delete

.

2.

Modify the information.

3.

Click the

Save

button.

Click the

Enable All/ Disable All

button to make all entries enabled/ disabled.

Click the

Delete All

button to delete all entries.

Click the

Next

button to go to the next page and click the

Previous

button to return the

previous page.

)

Note

:

If you set the service port of the virtual server as 80, you must set the Web management port on

“

Security –> Remote Management

” page to be any other value except 80 such as 8080.

Otherwise there will be a conflict to disable the virtual server.

4.8.2

Port Triggering

Choose menu “

Forwarding

→

Port Triggering

”, you can view and add port triggering in the next

screen (shown in Figure 4-37). Some applications require multiple connections, like Internet

games, video conferencing, Internet calling and so on. These applications cannot work with a

pure NAT Router. Port Triggering is used for some of these applications that can work with an

NAT Router.