Firewall

–

Access

You can restrict users from accessing certain Internet applications/services (e.g. Internet

websites, email, FTP etc.). Access Control allows users to define the traffic type permitted in your

LAN. You can control which PC client can have access to these services.



Deny:

If you select “Deny” then all clients will be allowed to access Internet accept for

the clients in the list below.



Allow:

If you select “Allow” then all clients will be denied to access Internet accept for

the PCs in the list below.



Filter client PC by MAC

: Check “Enable MAC Filtering” to enable MAC Filtering.



Add PC

: Fill in “Client PC MAC Address” and “Comment” of the PC

that is allowed to

access the Internet, and then click “Add”. If you find any typo before adding it and want

to retype again, just click "Reset" and the fields will be cleared.



Remove PC: If you want to remove some PC from the "MAC Filtering Table", select the

PC you want to remove in the table and then click "Delete Selected". If you want to

remove all PCs from the table, just click the "Delete All" button. If you want to clear the

selection and re-

select again, just click “Reset”.



Filter client PCs by IP:

Fill in “IP Filtering Table” to filter PC clients by IP.



Add PC: You can click Add PC to add an access control rule for users by IP addresses.



Remove PC: If you want to remove some PCs from the "IP Filtering Table", select the PC

you want to remove in th

e table and then click “Delete Selected". If you want to remove

all PCs from the table, just click the "Delete All" button.

Click Save & Apply at the bottom of the screen to save the above configuration.

Firewall

–

URL block

You can block access to some Web sites from particular PCs by entering a full URL address or

just keywords of the Web site.



Enable: URL Blocking Enable/disable URL Blocking



Add URL/keyword:

Fill in “URL/Keyword” and then click “Add”. You can enter the full URL

address or the keyword of the web site you want to block.



Remove URL/keyword: If you want to remove some URL keywords from the "Current

URL Blocking Table", select the URL keyword you want to remove in the table and then

click "Delete Selected". If you want remove all URL keywords from the table, just click

"Delete All" button. If you want to clear the selection and re-select again, just click

“Reset”.

Click Save & Apply at the bottom of the screen to save the above configuration.

Firewall

–

Virtual Server

Use the Virtual Server function when you want different servers/clients in your LAN to handle

different service/Internet application type (e.g. Email, FTP, Web server etc.) from the Internet.

Computers use numbers called port numbers to recognize a particular service/Internet

application type. The Virtual Server allows you to re-direct a particular service port number

(from the Internet/WAN Port) to a particular LAN private IP address and its service port number.



Enable Virtual Server: Enable Virtual Server.



Local IP: This is the LAN client/host IP address that the Public Port number packet will be

sent to.



Local Port: This is the port number (of the above Private IP host) that the below Public

Port number will be changed to when the packet enters your LAN (to the LAN

Server/Client IP).



Type: Select the port number protocol type (TCP, UDP or both). If you are unsure, then

leave it

to the default “both” setting.



Public Port: Enter the service (service/Internet application) port number from the

Internet that will be re-directed to the above Private IP address host in your LAN



Comment: The description of this setting.



Add:

Fill in the "Private IP", "Private Port", "Type", “Public Port” and "Comment" of the

setting to be added and then click the + sign. Then this Virtual Server setting will be

added into the "Current Virtual Server Table" below.



Reset: If you want to remove Virtual Server settings from the "Current Virtual Server

Table", select the Virtual Server settings you want to remove in the table and then click

"Delete Selected". If you want to remove all Virtual Server settings from the table, just

click the "Delete All" button. Click "Reset" will clear your current selections.

Click Save & Apply at the bottom of the screen to save the above configuration.

Firewall

–

ALG

An application gateway is an application program that runs on the router. When a client

program establishes a connection to a destination service, it connects to an application

gateway, or proxy. The client then negotiates with the proxy server in order to communicate

with the destination service. In effect, the proxy establishes the connection with the destination

behind the firewall and acts on behalf of the client, hiding and protecting individual computers

on the network behind the firewall.

This creates two connections: one between the client and the proxy server and one between

the proxy server and the destination. Once connected, the proxy makes all packet-forwarding

decisions. Since all communication is conducted through the proxy server, computers behind

the firewall are protected.

You can select the pre-

programmed ALG’s on this page.

Task manager

System Logs

On this page you can find the system log.

If you’re using an external logging server you can

enable the ‘Remote Log’ functionality and enter the IP Address of the server in the appropriate

field.