Bedienungsanleitung Linksys BEFSX41 (Seite 16 von 43) (Englisch)

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Chapter 2

Advanced Configuration

Broadband Firewall Router with 4-Port Switch/VPN Endpoint

If you wish to deny or allow Internet access for those 2.

PCs you listed on the List of PCs screen, click the

option.

You can filter access to various services accessed over 3.

the Internet, such as FTP or Telnet, by selecting a service

from the drop-down menus next to Blocked Services.

If a service isn’t listed, you can click the Service button

to open the Service screen and add a service to the list.

You will need to enter a Service name, as well as the

Protocol and Port Range used by the service.

By selecting the appropriate setting next to Days and 4.

Time, choose when Internet access will be filtered.

Lastly, click the 5. Save Settings button to activate the

policy.

Restrict Access > Port Services

To Create an Inbound Traffic Policy

Enter a Policy Name in the field provided. Select 1.

Inbound Traffic as the Policy Type.

Enter the IP Address from which you want to block. 2.

Select the Protocol: TCP, UDP, or Both. Enter the port

number or select Any. Enter the IP Address to which

you want to block.

Select 3. Deny or Allow as appropriate.

By selecting the appropriate setting next to Days and 4.

Time, choose when the Inbound Traffic will be filtered.

Lastly, click the 5. Save Settings button to activate the

policy.

When finished making your changes on this tab, click the

Save Settings button to save these changes, or click the

Cancel Changes button to undo your changes.

Internet Access can be filtered by URL Address, by entering

the address in a Website Blocking by URL Address field, or

by entering a keyword in one of the Website Blocking by

Keyword fields.

Applications & Gaming > Port Range

Forwarding

The Port Range Forwarding screen allows you to set up

public services on your network, such as web servers,

ftp servers, e-mail servers, or other specialized Internet

applications. (Specialized Internet applications are any

applications that use Internet access to perform functions

such as videoconferencing or online gaming. Some Internet

applications may not require any forwarding.)

When users send these types of requests to your network via

the Internet, the Router will forward those requests to the

appropriate servers (computers). Before using forwarding,

you should assign static IP addresses to the designated

servers.

If you need to forward all ports to one computer, click the

DMZ tab.

Applications and Gaming > Port Range Forwarding

Port Range Forwarding

To forward a port, enter the information on each line for

the criteria required.

Application In this field, enter the name you wish to give

the application. Each name can be up to 12 characters.

Start and End Enter the number or range of port(s)

used by the server or Internet applications. Check

with the Internet application documentation for more

information.

Protocol Select the protocol used for this application,

either TCP or UDP, or Both.

IP Address For each application, enter the IP address of

the PC running the specific application.

Enabled Select Enabled to enable port forwarding for

the applications you have defined.

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