An IP (Internet Protocol) address written on the wall of this building in Geneva, Switzerland. A new kind of graffiti ? An awkward reminder ? A weird joke ? A curious ritual anyway.

Update: my friend Hannes Gassert, on FB, commented on this by saying something that makes it's even more intriguing:

That's not an address, that's a subnetwork definition ("mask"), the /24 indicating a network with 255 possible participants. Usually that's used with 192.168.1.0, so this is one off, for some reason. This notation was introduced with a network architecture that is called classless, so this might very well the most nerdy propaganda for small, classless societies ever encountered. Or, as the name of that notation is CIDR and it's a bit off, someone just might have had a bit too much cider.