IT Services of ETH Zurich (ITS). wireless network of ETH is the most convenient. In public rooms such as CAB F 31 or G 41 you can also connect laptops using a cable. UTP plugs there are configured for public docking. D-INFK members can ask your IT Coordinator or isginf for a wired connection with a fixed IP address in their office. VPN once you have established general internet connectivity, for instance at home, in a coffee shop or in a hotel. free access to the internet for 24 hours. All that is needed is a mobile phone number to receive a text message with a validation code.