X5668 / X5668U

User’s Guide

26

Bridging

Figure 25: WAN Connection, Bridging Configuration

To configure the Bridging settings:



Check “

Enable Bridge Service

” to enable bridge service



Enter the

Service Name

for this bridging interface.



Click

Next

The

WAN Setup Summary

page shows all of parameters. Click

Save

if correct and

click

Back

to restart the configuration again.

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User’s Guide

27

LAN

Figure 26: LAN Configuration

To configure LAN:



Enter the

IP address

which the CPE in the LAN will use to connect to the device.

For example, enter 192.168.1.1



Enter the

Subnet Mask

. For example, enter 255.255.255.0



Check to enable UPnP feature



Check to

Enable IGMP Snooping

. This feature will snoop all of IGMP packets

and record related information. Therefore, multicast packets will be generated to

the related LAN ports only to avoid the packet flooding on all of LAN ports. Select

one of two modes,

Standard mode

or

Blocking mode

.



Select to

Enable or Disable DHCP server

. If it is enabled, please enter the DHCP

IP pool of

Start IP address

and

End IP address

. Enter the value of

leased time

in

hour about the valid period of assigned IP address. The DHCP server ON

(enabled) feature will enable this device to assign IP address automatically to PC

in LAN if PC requests an IP address by DHCP client protocol.



Click

Save

to save the configuration

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User’s Guide

28

NAT (Network Access Translation)

The NAT feature provides the basic firewall feature to avoid hacker attacks from

remote site. There are three more setting pages including virtual server, port trigger,

and DMZ to provide specified service for remote users.

Virtual Server

Virtual Server enables you to run a server on your local network that can be accessed

from the remote parties. You need to set up a rule to tell the device on which computer

the server is held. When port virtual server is enabled, your router (the device) routes

all the inbound traffic on a particular port to the chosen computer on your network.

Figure 27: Virtual Server Setup Configuration

Click Add to add a rule of virtual server.

Figure 28: Add A Rule Of Virtual Server

Global Setting



Select a

service

from the predefined list or enter the name of

Custom Server



Enter the

Server IP Address

located in the LAN to provide the service to remote

party

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User’s Guide

29



Enter the

Start External Port #

and

End External Port #

that open to remote to

access the service



Select the

Protocol

from the list



Enter the

Start Internal Port #

and

End Internal Port #

that may use different port

# to secure the service. If you use the same port # as

external port #

, please

leave

Internal Port #

as blank.



Click

Save/Apply

Port Triggering

The feature is similar to the virtual server, but provides a more secure way to provide

your device. It opens up the port hole temporary and allows CPE in LAN to establish a

connection with remote parties. Those ports are open only if a specified request from

a PC in LAN is received, and then the device allows the remote parties to access to

establish a connection with that PC in LAN.

Figure 29: Port Triggering Setup

Click

Add

to add a rule of port triggering.

Global Setting



Select a

service

from the predefined list or enter the name of

Custom Server



Enter the

Server IP Address

located in the LAN to provide the service to remote

party



Enter the

Start Trigger Port #

and

End Trigger Port #

that open to remote to

access the service



Select the

Trigger Protocol



Enter the

Start Open Port #

and

End Open Port #

that may use different port # to

secure the service. If you use the same port # as

Trigger port #

, please leave

Open Port #

as blank.



Select the

Open Protocol



Click

Save/Apply

X5668 / X5668U

User’s Guide

30

Figure 30: Add A Rule Of Port Triggering

DMZ

A DMZ (DeMilitarized Zone) host is a computer on your network that can be accessed

from the Internet. The de-militarised zone (DMZ) is for forwarding IP packets from the

remote parties that are not fixed to any of the applications configured in the virtual

server. These packets are forwarded to a designated DMZ host device. A DMZ is

often used to host Web servers, FTP servers etc that need to be accessible from the

Internet

Figure 31: Add A Rule Of Port Triggering

Global Setting



Enter the

DMZ Host IP address



Click

Save/Apply