http://lm.i2p/nojs/knowledge/monero-networking
Now, for some people, in some locations, this information alone may be enough to cause damage to reputation or freedom. Or perhaps the idea of anyone invading your privacy and what you do on the internet, for any reason, is not acceptable to you. These individuals are encouraged to only connect to the Monero network using VPNs, Tor, or I2P, all of which are services that hide a user's IP address from others as well as hide what a user is doing from their ISP.