Nowadays, many cities have CMCC and ChinaNet WIFI base stations. Most public places, such as schools, government offices, airports, and stations, are covered by WLAN. Users can connect to CMCC and ChinaNet anytime without encryption. However, when trying to open any webpage, a telecom or mobile login interface will pop up, requiring users to log in to the WIFI. Using LAVAVPN can bypass this authentication login, thus enabling free internet access.