Generally these well-intentioned networks block the usual VPN and tunneling solutions (think kid and a school network with a firewall that only allows FTP, HTTP, and HTTPS).
At which point you simply use these ports for your VPN.
OpenVPN can use TCP, it can use UDP, it can use whatever port you like, it can even use a fixed key to turn all traffic into random noise (obfuscating protocol structures).
OpenVPN can use TCP, it can use UDP, it can use whatever port you like, it can even use a fixed key to turn all traffic into random noise (obfuscating protocol structures).