Nexland Pro100 Internet Security Box (4)
Overclocker 8 Aug 2002

Installation (2)

Following the instructions on the manual, it is not difficult to get to this screen at http://192.168.0.1 which is the menu for the configuration of the device. Choose MAIN SETUP and you would need to specify your USer ID and password for logging onto the DSL ISP. 

In the following screen we take a look at the STATUS and we can see that the device is already operating properly and has acquired the proper IP addr, gateway and DNS information. 

once it is done, you would see that the LED indicator lights will show that WAN is connected, PPPoE Active.

On the left hand panel there are also other options which you can set. One of those is the capability to customise a Backup/Analog/ISDN dial up if the DSL link is down. To active it, you must connect an external modem (analog or ISDN) to the ISB's serial port in order to use this feature. In backup mode, the ISB will automatically dial when broadband drops. It will also automatically re-engage broadband when it comes back online. If you like, you can manually engage the Analog/ISDN connection. When enabled, the ISB will connect automatically when broadband drops.

Dynamic DNS is a way for people outside to connect to your computers using a domain name, even when you have a dynamic IP account from your ISP (your IP address changes from time to time). So if you setup a Virtual Web Server, people will always be able to access it by entering for example www.mydyndns.com

What the ISB does is it contacts a Dynamic DNS service every time your IP changes and updates it automatically. The Dynamic DNS service then points DNS servers throughout the world to your new IP. Dynamic DNS services are available for pay and for free. You have the option of using the ISB to automatically update a TZO Dynamic DNS account. TZO provides a reliable subscriber based Dynamic DNS service. The Standard Dynamic DNS client in the ISB is compatible with standard services. The information for the client fields below should be gotten from the service you choose.

If you need to route, there is a need to setup the static routing table in this menu.

This screen lets you control the types of information allowed into your LAN. For example, to prevent the use of Real Audio on the LAN, you can block it's protocol here or block all Internet access. Most standard protocols are predefined or you can define custom filters. There are 5 security groups that you can define so you can have different levels of access for different computers.

By default, all computers are part of the "Everyone" group and have No Restrictions on Internet use. If you wish to define filters, first select the group from the drop down menu, then enter the filters for that group below. If you have previously made an entry to this screen you must first select it from the drop down menu and then click to access it's settings.

Certain applications with 2-way communication need ports opened up in the firewall in order to function . This is true of most games and video/tele conferencing software. Some popular titles are already predefined, but are disabled by default. You can enable them here or add new entries. To find out what ports and protocols your application needs for operation, it's best to consult the application's support section and search for Firewall or NAT usage. Some applications might need more than one entry defined and enabled. This is the case when they have multiple port ranges in use. One of such applications is ICQ Chat.

This screen will let you define a standard Virtual Server accessible from the outside by the ISB's External WAN IP address. The ISB then redirects the request to your internal local IP address for the Virtual Server. This lets you setup a Web server, for instance, behind the firewall.

This feature allows one (1) computer to have unrestricted 2-way communication with Internet servers or users. This is useful for hosting games or special servers/applications. Because of the security risk, this feature should be activated only when required.

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