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22

3.4.3.2 WAN

There are two items under the WAN section, ISP and DNS. When you click

ISP

, you will get

the following screen.

The factory default is RFC 1483 routed mode. If your ISP uses the same access protocol, please

click

Edit

to input other parameters as below. If your ISP does not use RFC 1483 routed mode,

you can delete it, click

Delete

. Then you may click

Create

to create a connection to your ISP to

surf the Internet. Refer to the figure after the RFC 1483 routed mode description below.

Description:

Give a name for this connection.

VPI and VCI

: Enter the information provided by your ISP.

NAT:

The NAT feature allows multiple users to access the Internet through a single IP account,

sharing the single IP address. If users in the LAN site have public IP addresses and can access

the Internet directly, the NAT function can be disabled.

Encapsulation method

: Select the protocol format, the default is LlcBridged. Select the one

provided by your ISP.

DHCP client:

Enable or disable the DHCP client, specify if the Router can get an IP address

from the Internet Server Provider (ISP) automatically or not. Please click Obtain an IP address

automatically via DHCP client to enable the DHCP client function or click Specify an IP

address to disable the DHCP client function, and specify the IP address manually. The setting of

this item is specified by your ISP.

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23

Check one of the access methods among the 5 listed items and click

Next

to configure the right

connection method.

The WAN-DNS is shown as below.

A Domain Name System (DNS) contains a mapping table for domain name and IP addresses. In

the Internet, every host has a unique and friendly name such as www.yahoo.com

and an IP

address. As the IP Address is hard to remember, the DNS converts the friendly name into its

equivalent IP Address.

You can obtain a Domain Name System (DNS) IP address automatically if your ISP provides it

when you logon. Usually when you choose PPPoE or PPPoA as your WAN - ISP protocol, the

ISP will provide the DNS IP address automatically. You may leave it as blank. Or your ISP may

provide you with an IP address of their DNS. If this is the case, you must enter the DNS IP

address.

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3.4.3.3 System

There are six items under the SYSTEM section, Time Zone, Error Log, Remote Access,

Firmware Upgrade, Backup/Restore, and Restart. When you click

Time Zone

, you get the

following figure.

The router does not have a real time clock on board; instead, it uses the simple network time

protocol (SNTP) to get the current time from the SNTP server from the outside network. Please

choose your local time zone, click

Enable

and click the Apply button. You will get the correct

time information after you really establish a connection to the Internet. If you prefer to enter

your own SNTP server, please enter and use it as the first choice.

When you click the

Error Log

, it shows the error message log. When you face a problem,

please send this error log to support for quick feedback.

When you click

Remote Access

and then click

Enable

, you may temporarily permit remote

administration of the TW-EA1000GE Router.

When you click

Firmware Upgrade

, it allows you to input the location of firmware stored on

your PC and click the Upgrade button to upgrade to the new firmware.

When you click

Backup/Restore,

it allows you to save your current settings into a file on your

PC. If you like to restore it back (input the location of this configuration file in the PC and click

the

Restore

button to save it back).

When you click

Restart

, you have two functions. One is to restart it with current settings and

the other is to restart it with factory default settings if you check

Reset to factory default

settings

.

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25

3.4.3.4 Firewall

There are three items under the Firewall section, General settings, Packet Filter, and Intrusion

Detection. When you click General Settings, you get the following figure.

Firewall

: When you enable Firewall function, you can select one of the firewall security

policies.

All blocked/User-defined:

By default, all of traffic between WAN and LAN are blocked. You

have to configure the type of traffic passed between WAN and LAN, please refer to Packet Filter

below.

High, Medium and Low security level:

By default, your system use High, Medium or Low

firewall security level between WAN and LAN. For example, when you select High, the Port

Filters of

Packet Filter screen will be set automatically according to High security level settings.

The Firewall – Packet Filter is shown as below.

You may configure to filter inbound (incoming) and outbound (outgoing) packets based on

PORT or IP address.

If it is based on PORT, click Port Filters for more options. You may filter the packets based on

PORT and packet type (TCP or UDP or any). For example, the protocol number 1 means ICPM.

You may enter 1 to protocol number of Raw IP Filtering web page. The port range is supported.

If it is based on the IP address, click Address Filters for more options. You may enter the IP

address and again to select the inbound or outbound packets.

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For example, to allow TCP packet, port 0 to 1000 passing router between WAN and LAN and

besides block host IP address, 192.168.0.100. Then you have to configure the port filter -> add

TCP filter > 0 to 1000 and ALLOW in both direction. Then click address filter -> add address

filter -> enter host IP 192.168.0.100, subnet mask 255.255.255.0 and both direction.

The Firewall – Intrusion Detection is shown as below.

Enable

: Set True to enable this Intrusion detection.

Use BlackList

: Set True to use router’s default backlist to protect router.

Use Victim Protection

: Set True to enable Victim protection.

Victim Protection Duration

: Input numbers.

DoS Block Duration

: Input numbers

Scan Block Duration

: Input number.

Maximum TCP Open Handshaking Count

: Input numbers.

Maximum Ping Count

: Input numbers

Maximum ICMP Count

: Input numbers

3.4.3.5 VPN

There is one item under VPN section, PPTP.

There are two applications provided, Remote

Access and LAN-to-LAN (please refer below for more information.). Click

Create

to select one

of applications and to setup continually.