I don´t think so...
this information is on the university website
Public access VLAN
The eduroam-guest/WiFi_IST VLAN
The public and broadcasted eduroam-guest/WiFi_IST SSID provides free access to a open VLAN that enable users to reach the gateway of the wireless network (wifi.ist.utl.pt). Users in this VLAN get private IP addresses in the range 10.1.0.1 to 10.1.7.249.
While this SSID provides open, non authenticated wireless access to the local gateway, routing of packets to other IST and Internet sites is blocked. Moreover, any Web access attempt to external sites is redirected to a local site in the gateway (
http://wifi.ist.utl.pt/index_auth.php) where configuration instructions and other useful information about wireless access is provided.
Users of this public VLAN may also use the legacy VPN authentication access method in order to obtain access to the Internet. By establishing a PPTP VPN connection with the gateway, using the Central Authentication Service (Fenix) credentials, free access to the Internet is provided. This access method, only available to local IST users, provides user authentication and data encryption. Users are however warned that this access method is kept only for compatibility purposes and that it will be canceled in the nearby future. Therefore, all users are strongly encouraged to adopt the 802.1X access method on the (hidden) eduroam/e-U.