I2P
I2P (Invisible Internet Project) is an anonymous overlay network - a network within a network. It is intended to protect communication from dragnet surveillance and monitoring by third parties such as ISPs. Classification of UDP flows requires activating SPID detection for UDP (see spid protocol).
Available to all SRX running 12.3X48+
Available to all MX running 20.2R1+
Available to all vSRX running 20.3R1+