Configuring the Advanced Settings

URL filter

The URL filter allows you to block access to certain Internet sites or Internet domains, or to limit accesses to certain Internet sites. Once you have entered the relevant URLs you can then create access rules that apply the URL filter to the selected clients in your network.

ìIn the Advanced Settings – Internet – Firewall menu, select Access Control.

ìSelect Filtering mode, i.e. whether you wish to allow or block access to the URLs in the list.

ìEnter the required URL in the field.

ìClick Delete to delete an entry. Click Add to create a new entry.

ìClick OK to apply the settings.

Setting up the NAT function

Your Gigaset SE366 WLAN comes provided with the NAT (Network Address Translation) function. With address translation, several users on your local network can access the Internet via one or more public IP addresses. In the default setting, all local IP addresses are mapped to your router's public IP address.

One property of NAT is that data from the Internet is not allowed into your local network unless it has been explicitly requested by one of the PCs on that network. Most Internet applications run behind the NAT firewall without any problems. If you request Internet pages, for example, or send and receive e-mails, the request for data from the Internet comes from a PC on the local network and the router allows the data through. The router opens exactly one port for the application. A port is an internal PC address through which the data is exchanged between a server on the Internet and a client on a PC in the local network. Communicating via a port follows the rules of a specific protocol (TCP or UDP).

If an external application tries to send a call to a PC within the local network, the router will block it. There is no open port via which the data could enter the local network.

Some applications, such as games on the Internet, require several links, i.e. several ports so that the players can communicate with each other. In addition, these applications must also be permitted to send requests from other users on the Internet to the user on the local network. Initially, these applications will not work if Network Address Translation (NAT) is activated.

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