Since 10 November our faculty has a new website! The old website will still be available at for now. Something is broken? Please report it to or use our webform.

translated by Google

Wireless LAN at FI

The wireless network operates above the IEEE 802.11a, 802.11g, 802.11n compliant hardware.

Wlan_fi network

To access this network, you need to connect to ESSID wlan_fi . Once the IP address is assigned, only access to DNS servers and to DNS is enabled . An authorized user has the option to activate his machine by accessing the URL , where they need to authenticate using faculty logins and faculty passwords. Access is limited to a maximum of several hours.

For the wireless network, segment is reserved. 2001: 718: 801: 22b :: / 64. The connected stations dynamically acquire their IP address by DHCP.

Upon activation, access to anywhere outside the FI is enabled from the appropriate IP address. From FI's point of view, it connects to a connected computer similarly to any other computer outside the FI network. So all FI services should work, for example, if you are connected via any other Internet provider. Some services, on the other hand, will not work - for example, sharing NFS and SMB (Windows) drives.

The faculty firewall tests whether your computer is still active. If it does not respond to ping (ICMP echo request) or ARP query for more than 5 minutes, the activation of the given IP address is canceled and the user must reactivate his address using the above URL.

Users must note that all communication between their computer and the wireless access point is interceptible, even if an attacker has the option, under certain circumstances, to take their address and thus "abduct" an existing connection. It is therefore recommended to use secure encrypted protocols (such as HTTPS, IMAPS, POP3S and SSH) to log in and transfer data.

The eduroam network

Eduroam ( EDUcation ROAMing ) is an international project supporting the mobility of users in academic networks. Allows users to join networks of all participating organizations (especially wifi). In the case of a radio overlay of multiple networks (belonging to different resource providers, with different IP subnets, etc.) with the same SSID, this SSID is set to "eduroam- [inst]" where [inst] is a well-understood abbreviation for the organization name.

The FI building is one provider of the Eduroam project network. ESSID eduroam covers the entire FI building. Communication between the computer and the wireless access point is secured with WPA / WPA2. For the eduroam wireless network, segment, respectively. 2001: 718: 801: 22c :: / 64. The connected stations dynamically acquire their IP address by DHCP. Compared to wlan_fi, it is not necessary to activate your machine after connecting to the network.

Instruction how to connect to the eduroam network.

Links, documentation