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Wireless ADSL Modem Configuration Example

A wireless ADSL modem sounds like a bit of a contradiction but in this instance what we are really referring to is an ADSL modem that allows you to connect to your internet service provider via a DSL connection (or Digital Subscriber Line) that also has a wireless access point built into it. If you are planning to create a wireless network in an area the size of your average house and intend to share an ADSL connection then one of these devices may suit your needs perfectly.

There are a number of things that you must ask of your Internet Service Provider before you proceed and most will be cooperative in supplying the answers. If for some reason they cant answer your questions consider that most ADSL modems are configured with defaults that are intended to work in the country in which they are sold. Our example Bipac would work just fine with the default settings (username and password configured of course) in Australia. This doesnt mean you should stop reading and just go plug it in, because your whole street will be gratefull for the free broadband you will provide courtesy of your unsecured wireless network, although it is unlikely that they will thank you. So grab a pen and paper and phone your ISP or send them an email asking-

  • Encapsulation Type
  • VPI
  • VCI
  • Primary and Secondary DNS server IP addresses
  • Your ADSL username and password

We have selected the Billion Bipac 7300G as an example modem for its easy to understand interface and the good build quality of Billions products. It is an ADSL modem, 4 port ethernet switch and wireless access point in one. Plug the ADSL modem in and connect it to your computer, preferably via an ethernet cable however you can connect to it wirelessly if necessary. The default SSID is wlan-ap and the default LAN IP address is 192.168.1.254. The DHCP server is enabled by default however you may prefer to configure your wireless or ethernet card with a manually assigned address, say 192.168.1.10 with a subnet mask of 255.255.255.0. Configuring your LAN interface is described in detail in our Tutorials section.

Bipac 7300G Login - Click to EnlargeOnce you have connected the ADSL modem to your computer its time to login and configure it. Open up a web browser (such as Internet Explorer, Firefox, Safari or whatever you would normally look at web pages with) on your computer and in the address field type http://192.168.1.254 . If you have configured your network adapter successfully a box will appear on the screen prompting you to enter a username and password. Into this box enter the modems default username of admin and into the password field type in the default password, which is also admin. Both should be entered into the login box in lower case with no spaces.

Bipac 7300G Status Page - Click to EnlargeOnce you have logged into the ADSL modem successfully you will be taken to its status page. We can see that there is a menu on the left hand side containing 4 options and down on the bottom left hand corner you will see a Save Config and a restart button. The Save Config (configuration) option is an important one that we'll talk about now rather than have to repeat it endlessly. As you configure the modem it is possible to apply settings which will make the changes youve made work immediately, but what happens if we turn the modem off? It must be reconfigured. The modem has a flash memory it uses to store the settings on for when it has to restart. So we can make the changes permanent by saving its configuration. Lets click on the save config button now.

Bipac 7300G Save Config to FLASH - Click to EnlargeSaving the modems configuration is remarkably easy, simply click the Apply button and wait. It usually takes about 10-15 seconds for most devices to save the configuration to its memory. From there you will probably return to the configuration page you were last editing. Avoid interupting the modem while the configuration is being saved, dont click on anything in your browser or turn the power to the modem off as this may cause damage to its flash memory.

Bipac 7300G Restart modem - Click to EnlargeThe other button down there next to Save Config is Restart Router. This links us to a page that allows us to restart the adsl modem and we have 3 options as to how we would like it to restart. The first choice is to save the current configuration to flash and restart, the second keeps the current settings stored on its flash memory and simply restart and the final one, restores the router to its factory default settings and restarts it. The factory defaults option can be a good one if youve tinkered with your router in some way and dont know how to fix it.

 

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