Wi-Fi

There is a possibility to connect to academical net LIANE in selected rooms by wireless network (Wi-Fi, 802.11b/g). Our wireless infrastructure supports number of networks, whose authentication mechanisms have a different characteristics:

• eduroam (SSID eduroam)
  It is connected to the eduroam authentication infrastructure and enables connection of every user of the eduroam project. It is the better option, because it assigns public addresses from the university address space, thus covering complete network services. It is also more secure, because data communication is encrypted (by WPA). Its disadvantage is that it requires support of 802.1X authentication protocol on the client side and one special program (supplicant). See the details about the use of eduroam.

  Moreover, the whole system participates in eduroam project. Thanks to this, you will get access to the network at other universities inthe Czech Republic and also abroad.

• TULwifi (SSID TULwifi)
  TULwifi verifies user identity through a secured WWW form. This network is not connected to eduroam, consequently the login is possible only for TUL users. Username and password are the same as for eduroam network.

  Assigned addresses come from non-public area and are translated during communication (NAT, Network Address Translation). In addition the communication is restricted by firewall, allowing only selected services. Expect limited functionality of network services here.

  Assigned addresses come from non-public area and are translated during communication (NAT, Network Address Translation). In addition the communication is restricted by firewall, allowing only selected services. Expect limited functionality of network services here.

• TULIoT (SSID TULIoT)
  TULIoT network is intended purely for testing and development of IOT devices.

  It is necessary to register your device through web IoT interface. There it will receive a PSK key (meant for this device only). After that, a standard registration process for obtaining the IP address must take place (please, supply information that it concerns the IoT device!).

  The device will get a public IP address, communication will be allowed from / to TUL address space. In case that the device will need to access another addresses, an exception will be set up. This network is intended mostly for employees.

Which authentication should I use?

We strongly recommend that you prefer superior and more secure eduroam authentication. Once-for-all investment of certain effort to software configuration, necessary for eduroam function, pays off by better services.Take

TULwifi as the last resort. Range of network services for yourcomputer is no way complete, but reading e-mail or browsing a web ispossible.

TULIoT is intended for the Internet of Things. You should definitely not try to use it for ordinary Internet connection.

How should I choose the authentication?

Every authentication mechanism is offered in form of a separated network. Which network you connect to, such authentication mechanism will be used. Networks are differentiated by their identifiers (SSID, Service Set IDentifier). However, uniform tutorial does not exists on how to choose orset SSID. It depends on software delivered with you network card, so it is different case by case. But in most cases, when a wireless network is found, program will show you the list of available networks and let you choose one. Further settings proceed in a user friendly way.

In the case of OS Linux, the best way is to set the corresponding value to the ESSID environment variable before connecting. You can create some scripts, which will connect you to the corresponding networks. For example script for connection with eduroam authentication would look like this for Linux RedHat:

#!/bin/bash 
ESSID=eduroam  
export ESSID  
/etc/init.d/network stop  
/etc/init.d/network start