Library network in Brussels arbitrarily blocks Tor

Connecting to the WiFi network of the French library system is arbitrarily restrictive. Connection dies the moment a Tor packet is sent. Tor is legal and also does not break the agreement people must agree to when connecting.

Does anyone know if this is the library’s decision? They apparently outsource to Cisco so I wonder if Cisco decided for themselves to block Tor traffic without being directed to do so.