Hotspot RADIUS Software : Configuration as RADIUS Hotspot

Here we will look at how to set up Softvision Explorer Professional 4 and the wireless router in order to create a Hotspot that uses routers with OpenWRT, DD-WRT and CoovaAP firmware or any other system that can manage a Hotspot with RADIUS certification. To see a complete list of RADIUS solutions supported by Softvision Explorer, please consult the page Systems compatible with RADIUS Hotspot.


Creating a Location

The first step is to create a new location. Firstly let's consider the case of a location in which the wireless router is connected to the same local network as the server. The system's connection diagram is the following :      



To create or modify a location we access the RADIUS Hotspot section present in the 'Set up' | 'Preferences' function in Explorer Manager.

For example, we insert a new location that uses a wireless router with DD-WRT firmware connected to our local network.  




As you can see from the example, for the router's WAN port we have used IP Should your ADSL router have an address in a different network (for example we should choose an IP such as  


Installation of the firmware

Now let's see how to replace the wireless router's standard firmware with the DD-WRT firmware.
Firstly, we download the DD-WRT firmware of our router from the site choosing Standard Generic firmware from the list of those available for our wireless router. In some cases, before installing the Standard Generic firmware, you may need to install the mini or micro so you will have to refer to any notes on the site.
As for the firmware OpenWRT we will download the file by locating our router model on the list available at
If you choose CoovaAP firmware (only available for Linksys 54G and GL) the firmware must be downloaded at

Now, let's see how to install the firmware that we have just downloaded onto Linksys 54GL. We connect a PC to one of the router's 4 LAN ports and we access the configuration interface by opening the browser at After having typed in user name and password (Leave the username blank and enter "admin" as the password), we click on the 'Administration' page and then 'Firmware Update'. With the 'Browse...' button we select the .bin file of the downloaded firmware and proceed to install with the 'Upgrade' button.    



Configuration of the wireless router


From the PC connected to the wireless router we again open page (username "root", password "admin"). At this point the procedure differs slightly depending on the firmware to be configured :


DD-WRT firmware

When accessing for the first time you will be asked to type in the new values for the access data: with reference to the example of the location just created, we use 'root' as user name and 'password' as the access password. At this point you need to set up the WAN port's IP address by clicking on the 'Setup' menu and then on 'Basic Setup'. In the first section (WAN Connection Type) we set up the connection type on 'Static IP' and the address in the following way:



-Subnet mask :

-Gateway :

-Static DNS 1 : (google Public DNS)



Where is our ADSL router's address. Should the ADSL router be set up on a different network, for example, the configuration will be as such:



-Subnet mask :

-Gateway :

-Static DNS 1 :


In the 'Network Setup' section we have to set up the router's (LAN port) address that should belong to a different network than that of the WAN port. For example we can set this address on




At this point all that is left is to enable the WAN port's SSH access: we click on the 'Services' menu and enable the 'SSHd' entry in the 'Secure Shell' box.



Finally we click on the 'Administration' menu and in the 'Remote Access' section enable the 'SSH Management' entry.

Now we can disconnect the PC from the wireless router and connect our ADSL router to the wireless router's WAN port. We move on to the server and back to the location window previously viewed. We send the configuration script by clicking the 'SEND SSH' button: the router will reboot and the configuration will be terminated. There is also another method for carrying out the configuration script on the router: from the router's WEB interface we click on 'Administration' and then on 'Commands'. In the 'Command Shell' box we paste the script taken from page http://IP-SERVER/setup.htm (where IP-SERVER represents the address of the server that carries out Explorer Manager, for example and click on the 'Run Commands' button.    


OpenWRT Firmware

For the OpenWRT firmware we have to login to the router by clicking on "Login", then "Go to password configuration..." and set the new password (e.g. as password "password", and as user "root"). To allow the SSH access go to "Network | Firewall" and in the "Zones" box set WAN (input) on "Accept". Now configure the WAN and LAN ports in "Network | Interface" section don't forgetting to click on "Save and Apply" at each change.

CoovaAP Firmware

The set up of the CoovaAP firmware is very similar: you will need to set up the WAN port by accessing the "Network" menu and then the "WAN" section. To enable SSH access on the WAN port we need to access the "Settings" section on the "System" menu and set the "WAN SSH Access" to "Enabled".


Remote location  


Now let's see the relevant configuration should the Wireless Router not be directly connected to the same LAN as the server but connected to any remote network.    



Let's suppose, for example, that the server is connected to ADSL Router 'A' while the wireless router is connected to ADSL Router 'B'. In this case, in the location set up seen at the beginning it is necessary to specify ADSL router 'B''s public IP address. In this same router the 22 TCP and 3779 UDP ports need to be turned towards the wireless router's IP ( in the example). Finally, in ADSL router 'A' the ports 80 TCP, 9393 TCP, 1812 UDP and 1813 UDP ports need to be turned towards the server's IP ( in the example.



Hotspot System: Hotspot wi-fi management software

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