Bedienungsanleitung Linksys E1200 (Seite 50 von 80) (Englisch)

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Improving Security

Linksys E-Series

Click Save Settings at the bottom of the page.

Click Wireless Client List again to check the updated device list. Only

the device you selected remains on the network.

How to improve security using the built-in firewall

Why would I need to change my security settings? By default, the firewall

settings in your router have been optimized for most home environments, so

no changes are needed. The SPI (Stateful Packet Inspection) firewall is enabled

by default. In addition, anonymous Internet requests and IDENT requests are

filtered by default. All web filters are disabled, because enabling them may

cause problems for sites that depend on ActiveX controls, Java, or cookies.

To change your firewall settings:

Security->Firewall

Log into the browser-based utility (see “How to open the browser-based

utility” on page 21).

Click the Security tab, then click the Firewall page.

Select each setting that you want to change.

TIP

For descriptions of the filters, click Help on the right side of the

screen. More complete descriptions are included below.

• SPI Firewall Protection—This helps protect your local network from

Internet threats. This option is enabled by default.

CAUTION

To help protect your network, you should keep this option enabled.

• Filter Anonymous Internet Requests—This filter blocks Internet

requests from unknown sources such as ping requests. This option is

enabled by default.

• Filter Multicast—Multicasting allows a single transmission to

simultaneously reach specific recipients within your local network.

Select this option to block multicasting. This option is disabled by

default.

• Filter Internet NAT Redirection—This filter prevents a local computer

from using a URL or Internet IP address to access the local server. Select

this option to enable the filter. This option is disabled by default.

• Filter IDENT (Port 113)—This filter prevents port 113 from being

scanned by devices from the Internet. This option is enabled by

default.

• Proxy - This filter blocks the use of Internet proxy servers. To deny

proxy requests, select this option. Proxy access is allowed by default.

• Java - This filter blocks Java, so you may not be able to access Java

content on websites. To deny Java requests, select this option. Java

content is allowed by default.

• ActiveX - This filter blocks ActiveX, so you may not be able to access

ActiveX content on websites. To deny ActiveX requests, select this

option. ActiveX content is allowed by default.

• Cookies - This filter blocks cookies, which are data stored on your

computer and used by websites when you interact with them. To deny

cookie requests, select this option. Cookie usage is allowed by default.

Click Save Settings to update your changes.

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